[MM-37661][MM-29878] Brand Updates for Desktop v5.0/MM v6.0 (#1691)

* WIP

* WIP

* Fixed the background

* Do the thing

* Merge'd?

* Adjust window height to completely show image

.circleci/config.yml

@@ -449,7 +449,7 @@ workflows:
             branches:
               only:
                 - /^release-\d+(\.\d+){1,2}(-rc.*)?/
-                - pull/1682
+                - pull/1691
 
       - store_artifacts:
           # for master/PR builds

electron-builder.json

@@ -96,18 +96,21 @@
     "background": "src/assets/osx/DMG_BG.png",
     "contents": [
       {
-        "x": 152,
-        "y": 201
+        "x": 135,
+        "y": 165
       },
       {
-        "x": 445,
-        "y": 201,
+        "x": 407,
+        "y": 165,
         "type": "link",
         "path": "/Applications"
       }
     ],
-    "iconSize": 110,
-    "iconTextSize": 13
+    "iconSize": 120,
+    "iconTextSize": 14,
+    "window": {
+        "height": 380
+    }
   },
   "squirrelWindows": {
     "iconUrl": "file://src/assets/icon.ico",