Cleaned up the QML

This moves all the "default" margins of the welcome pages into a single point (the WizardPanel)
in order to prevent having to re-define it every time.
I've also fixed some incorrect margins that we had

CURA-6057

resources/qml/WelcomePages/AddNetworkOrLocalPrinterContent.qml

@@ -19,7 +19,6 @@ Item
     {
         id: titleLabel
         anchors.top: parent.top
-        anchors.topMargin: UM.Theme.getSize("wide_margin").height
         anchors.horizontalCenter: parent.horizontalCenter
         horizontalAlignment: Text.AlignHCenter
         text: catalog.i18nc("@label", "Add a printer")
@@ -110,7 +109,6 @@ Item
         id: nextButton
         anchors.right: parent.right
         anchors.bottom: parent.bottom
-        anchors.margins: UM.Theme.getSize("wide_margin").width
         enabled:
         {
             // If the network printer dropdown is expanded, make sure that there is a selected item

resources/qml/WelcomePages/CloudContent.qml

@@ -31,7 +31,6 @@ Item
     {
         id: titleLabel
         anchors.top: parent.top
-        anchors.topMargin: UM.Theme.getSize("wide_margin").height
         anchors.horizontalCenter: parent.horizontalCenter
         horizontalAlignment: Text.AlignHCenter
         text: catalog.i18nc("@label", "Ultimaker Cloud")
@@ -44,11 +43,15 @@ Item
     Item
     {
         id: cloudContentsArea
-        anchors.top: titleLabel.bottom
-        anchors.bottom: finishButton.top
-        anchors.left: parent.left
-        anchors.right: parent.right
-        anchors.margins: UM.Theme.getSize("default_margin").width
+        anchors
+        {
+            top: titleLabel.bottom
+            bottom: finishButton.top
+            left: parent.left
+            right: parent.right
+            topMargin: UM.Theme.getSize("default_margin").height
+        }
+
 
         // Pictures and texts are arranged using Columns with spacing. The whole picture and text area is centered in
         // the cloud contents area.
@@ -113,7 +116,6 @@ Item
         id: finishButton
         anchors.right: parent.right
         anchors.bottom: parent.bottom
-        anchors.margins: UM.Theme.getSize("wide_margin").width
         text: catalog.i18nc("@button", "Finish")
         onClicked: base.showNextPage()
     }
@@ -123,7 +125,6 @@ Item
         id: createAccountButton
         anchors.left: parent.left
         anchors.verticalCenter: finishButton.verticalCenter
-        anchors.margins: UM.Theme.getSize("wide_margin").width
         text: catalog.i18nc("@button", "Create an account")
         onClicked: Qt.openUrlExternally(CuraApplication.ultimakerCloudAccountRootUrl + "/app/create")
     }
@@ -133,7 +134,7 @@ Item
         id: signInButton
         anchors.left: createAccountButton.right
         anchors.verticalCenter: finishButton.verticalCenter
-        anchors.margins: UM.Theme.getSize("wide_margin").width
+        anchors.leftMargin: UM.Theme.getSize("default_margin").width
         text: catalog.i18nc("@button", "Sign in")
         color: UM.Theme.getColor("secondary_button_text")
         font: UM.Theme.getFont("medium")

resources/qml/WelcomePages/DataCollectionsContent.qml

@@ -19,7 +19,6 @@ Item
     {
         id: titleLabel
         anchors.top: parent.top
-        anchors.topMargin: UM.Theme.getSize("wide_margin").height
         anchors.horizontalCenter: parent.horizontalCenter
         horizontalAlignment: Text.AlignHCenter
         text: catalog.i18nc("@label", "Help us to improve Ultimaker Cura")
@@ -32,11 +31,15 @@ Item
     Item
     {
         id: contentsArea
-        anchors.top: titleLabel.bottom
-        anchors.bottom: getStartedButton.top
-        anchors.left: parent.left
-        anchors.right: parent.right
-        anchors.margins: UM.Theme.getSize("wide_margin").width
+
+        anchors
+        {
+            top: titleLabel.bottom
+            bottom: getStartedButton.top
+            left: parent.left
+            right: parent.right
+            topMargin: UM.Theme.getSize("default_margin").width
+        }
 
         Column
         {
@@ -87,7 +90,6 @@ Item
         id: getStartedButton
         anchors.right: parent.right
         anchors.bottom: parent.bottom
-        anchors.margins: UM.Theme.getSize("wide_margin").width
         text: catalog.i18nc("@button", "Next")
         onClicked: base.showNextPage()
     }

resources/qml/WelcomePages/FirstStartMachineActionsContent.qml

@@ -40,7 +40,6 @@ Item
     {
         id: titleLabel
         anchors.top: parent.top
-        anchors.topMargin: UM.Theme.getSize("wide_margin").height
         anchors.horizontalCenter: parent.horizontalCenter
         horizontalAlignment: Text.AlignHCenter
         text: machineActionsModel.currentItem.title == undefined ? "" : machineActionsModel.currentItem.title
@@ -51,11 +50,13 @@ Item
 
     Item
     {
-        anchors.top: titleLabel.bottom
-        anchors.bottom: nextButton.top
-        anchors.margins: UM.Theme.getSize("default_margin").width
-        anchors.left: parent.left
-        anchors.right: parent.right
+        anchors
+        {
+            top: titleLabel.bottom
+            bottom: nextButton.top
+            left: parent.left
+            right: parent.right
+        }
 
         data: machineActionsModel.currentItem.content == undefined ? emptyItem : machineActionsModel.currentItem.content
     }
@@ -71,7 +72,6 @@ Item
         id: nextButton
         anchors.right: parent.right
         anchors.bottom: parent.bottom
-        anchors.margins: UM.Theme.getSize("wide_margin").width
         text: catalog.i18nc("@button", "Next")
         onClicked: machineActionsModel.goToNextAction()
     }

resources/qml/WelcomePages/UserAgreementContent.qml

@@ -18,7 +18,6 @@ Item
     {
         id: titleLabel
         anchors.top: parent.top
-        anchors.topMargin: UM.Theme.getSize("wide_margin").height
         anchors.horizontalCenter: parent.horizontalCenter
         horizontalAlignment: Text.AlignHCenter
         text: catalog.i18nc("@label", "User Agreement")
@@ -27,21 +26,16 @@ Item
         renderType: Text.NativeRendering
     }
 
-    Item  // Area for pictures and texts
-    {
-        anchors.top: titleLabel.bottom
-        anchors.bottom: agreeButton.top
-        anchors.left: parent.left
-        anchors.right: parent.right
-        anchors.margins: UM.Theme.getSize("wide_margin").width
-
     Label
     {
         id: disclaimerLineLabel
-            anchors.centerIn: parent
-            anchors.margins: UM.Theme.getSize("wide_margin").width
-
-            width: (parent.width * 2 / 3) | 0
+        anchors
+        {
+            top: titleLabel.bottom
+            topMargin: UM.Theme.getSize("wide_margin").height
+            left: parent.left
+            right: parent.right
+        }
 
         text: "<p><b>Disclaimer by Ultimaker</b></p>"
             + "<p>Please read this disclaimer carefully.</p>"
@@ -52,14 +46,12 @@ Item
         font: UM.Theme.getFont("default")
         renderType: Text.NativeRendering
     }
-    }
 
     Cura.PrimaryButton
     {
         id: agreeButton
         anchors.right: parent.right
         anchors.bottom: parent.bottom
-        anchors.margins: UM.Theme.getSize("wide_margin").width
         text: catalog.i18nc("@button", "Agree")
         onClicked:
         {
@@ -74,7 +66,6 @@ Item
         id: declineButton
         anchors.left: parent.left
         anchors.bottom: parent.bottom
-        anchors.margins: UM.Theme.getSize("wide_margin").width
         text: catalog.i18nc("@button", "Decline and close")
         onClicked:
         {

resources/qml/WelcomePages/WelcomeContent.qml

@@ -15,8 +15,6 @@ Item
 {
     UM.I18nCatalog { id: catalog; name: "cura" }
 
-    anchors.margins: UM.Theme.getSize("wide_margin").width
-
     Column  // Arrange the items vertically and put everything in the center
     {
         anchors.centerIn: parent

resources/qml/WelcomePages/WhatsNewContent.qml

@@ -19,7 +19,6 @@ Item
     {
         id: titleLabel
         anchors.top: parent.top
-        anchors.topMargin: UM.Theme.getSize("wide_margin").height
         anchors.horizontalCenter: parent.horizontalCenter
         horizontalAlignment: Text.AlignHCenter
         text: catalog.i18nc("@label", "What's new in Ultimaker Cura")
@@ -34,8 +33,8 @@ Item
         anchors.bottom: getStartedButton.top
         anchors.topMargin: UM.Theme.getSize("wide_margin").height
         anchors.bottomMargin: UM.Theme.getSize("wide_margin").height
-        anchors.horizontalCenter: parent.horizontalCenter
-        width: (parent.width * 3 / 4) | 0
+        anchors.left: parent.left
+        anchors.right: parent.right
 
         border.color: "#dfdfdf"
         border.width: UM.Theme.getSize("default_lining").width
@@ -65,7 +64,6 @@ Item
         id: getStartedButton
         anchors.right: parent.right
         anchors.bottom: parent.bottom
-        anchors.margins: UM.Theme.getSize("wide_margin").width
         text: catalog.i18nc("@button", "Next")
         onClicked: base.showNextPage()
     }

resources/qml/WelcomePages/WizardPanel.qml

@@ -61,7 +61,8 @@ Item
             id: contentLoader
             anchors
             {
-                margins: UM.Theme.getSize("default_margin").width
+                margins: UM.Theme.getSize("wide_margin").width
+                bottomMargin: UM.Theme.getSize("default_margin").width
                 top: progressBar.bottom
                 bottom: parent.bottom
                 left: parent.left