Change example data to contain HTML instead of JSON format

Then it's easier for us to show a more readable information about the data we collect

Contributes to CURA-6434.

plugins/SliceInfoPlugin/MoreInfoWindow.qml

@@ -89,6 +89,7 @@ Window
                 }
 
                 textArea.text: manager.getExampleData()
+                textArea.textFormat: Text.RichText
                 textArea.readOnly: true
             }
         }

plugins/SliceInfoPlugin/SliceInfo.py

@@ -77,7 +77,7 @@ class SliceInfo(QObject, Extension):
             if not plugin_path:
                 Logger.log("e", "Could not get plugin path!", self.getPluginId())
                 return None
-            file_path = os.path.join(plugin_path, "example_data.json")
+            file_path = os.path.join(plugin_path, "example_data.html")
             if file_path:
                 with open(file_path, "r", encoding = "utf-8") as f:
                     self._example_data_content = f.read()

plugins/SliceInfoPlugin/example_data.html

@@ -0,0 +1,40 @@
+Cura Version: 4.0<br/>
+System type: Windows<br/>
+Machine type: Ultimaker S5<br/>
+Quality profile: Fast<br/>
+Extruder 1:
+<ul>
+    <li>Material type: PLA</li>
+    <li>Print core: AA 0.4</li>
+    <li>Material used: 1240 mm.</li>
+</ul>
+Extruder 2:
+<ul>
+    <li>Material type: PVA</li>
+    <li>Print core: BB 0.4</li>
+    <li>Material used: 432 mm.</li>
+</ul>
+Print settings:
+<ul>
+    <li>Layer height = 0.15</li>
+    <li>Wall line count = 3</li>
+    <li>Enable retraction = no</li>
+    <li>Infill density = 20%</li>
+    <li>Infill pattern = triangles</li>
+    <li>Gradual infill steps = 0</li>
+    <li>Printing temperature = 220 °C</li>
+    <li>Generate support = yes</li>
+    <li>Support extruder = 1</li>
+    <li>Build Plate Adhesion Type = brim</li>
+    <li>Enable prime tower = yes</li>
+    <li>Print sequence = All at once</li>
+    <li>...</li>
+</ul>
+Print times:
+<ul>
+    <li>Infill = 61200 sec.</li>
+    <li>Support = 25480 sec.</li>
+    <li>Travel = 6224 sec.</li>
+    <li>Walls = 10225 sec.</li>
+    <li>Total = 103129 sec.</li>
+</ul>

plugins/SliceInfoPlugin/example_data.json

@@ -1,114 +0,0 @@
-{
-    "time_stamp": 1523973715.486928,
-    "schema_version": 0,
-    "cura_version": "3.3",
-    "active_mode": "custom",
-    "machine_settings_changed_by_user": true,
-    "language": "en_US",
-    "os": {
-        "type": "Linux",
-        "version": "#43~16.04.1-Ubuntu SMP Wed Mar 14 17:48:43 UTC 2018"
-    },
-    "active_machine": {
-        "definition_id": "ultimaker3",
-        "manufacturer": "Ultimaker B.V."
-    },
-    "extruders": [
-        {
-            "active": true,
-            "material": {
-                "GUID": "506c9f0d-e3aa-4bd4-b2d2-23e2425b1aa9",
-                "type": "PLA",
-                "brand": "Generic"
-            },
-            "material_used": 0.84,
-            "variant": "AA 0.4",
-            "nozzle_size": 0.4,
-            "extruder_settings": {
-                "wall_line_count": 3,
-                "retraction_enable": true,
-                "infill_sparse_density": 30,
-                "infill_pattern": "triangles",
-                "gradual_infill_steps": 0,
-                "default_material_print_temperature": 200,
-                "material_print_temperature": 200
-            }
-        },
-        {
-            "active": false,
-            "material": {
-                "GUID": "86a89ceb-4159-47f6-ab97-e9953803d70f",
-                "type": "PVA",
-                "brand": "Generic"
-            },
-            "material_used": 0.5,
-            "variant": "BB 0.4",
-            "nozzle_size": 0.4,
-            "extruder_settings": {
-                "wall_line_count": 3,
-                "retraction_enable": true,
-                "infill_sparse_density": 20,
-                "infill_pattern": "triangles",
-                "gradual_infill_steps": 0,
-                "default_material_print_temperature": 215,
-                "material_print_temperature": 220
-            }
-        }
-    ],
-    "quality_profile": "fast",
-    "user_modified_setting_keys": ["layer_height", "wall_line_width", "infill_sparse_density"],
-    "models": [
-        {
-            "hash": "b72789b9beb5366dff20b1cf501020c3d4d4df7dc2295ecd0fddd0a6436df070",
-            "bounding_box": {
-                "minimum": {
-                    "x": -10.0,
-                    "y": 0.0,
-                    "z": -5.0
-                },
-                "maximum": {
-                    "x": 9.999999046325684,
-                    "y": 40.0,
-                    "z": 5.0
-                }
-            },
-            "transformation": {
-                "data": "[[ 1.  0.  0.  0.] [ 0.  1.  0. 20.] [ 0.  0.  1.  0.] [ 0.  0.  0.  1.]]"
-            },
-            "extruder": 0,
-            "model_settings": {
-                "support_enabled": true,
-                "support_extruder_nr": 1,
-                "infill_mesh": false,
-                "cutting_mesh": false,
-                "support_mesh": false,
-                "anti_overhang_mesh": false,
-                "wall_line_count": 3,
-                "retraction_enable": true,
-                "infill_sparse_density": 30,
-                "infill_pattern": "triangles",
-                "gradual_infill_steps": 0
-            }
-        }
-    ],
-    "print_times": {
-        "travel": 187,
-        "support": 825,
-        "infill": 351,
-        "total": 7234
-    },
-    "print_settings": {
-        "layer_height": 0.15,
-        "support_enabled": true,
-        "support_extruder_nr": 1,
-        "adhesion_type": "brim",
-        "wall_line_count": 3,
-        "retraction_enable": true,
-        "prime_tower_enable": true,
-        "infill_sparse_density": 20,
-        "infill_pattern": "triangles",
-        "gradual_infill_steps": 0,
-        "print_sequence": "all_at_once"
-    },
-    "output_to": "LocalFileOutputDevice"
-}