Render labels using Text.QtRendering on OSX

Fonts were looking a bit to thick on when using `Text.NativeRendering`, so using `Text.QtRendering` instead. After this the font weight looks identical to figma (as far as I can see).

In this commit I also changed all `Label`'s to `UM.Label`'s and removed default properties where I could.

CURA-9154

resources/qml/WelcomePages/AddLocalPrinterScrollView.qml

@@ -183,7 +183,6 @@ Item
             UM.Label
             {
                 width: parent.width - (2 * UM.Theme.getSize("default_margin").width)
-                wrapMode: Text.Wrap
                 text: base.getMachineName()
                 color: UM.Theme.getColor("primary_button")
                 font: UM.Theme.getFont("huge")