refactor(copilot): update progress line structure in plugin.json

- Replaced the "primary" flag with "primaryOrder" for the "Premium" and "Chat" progress lines to enhance metric prioritization.
- Streamlined the progress line definitions for improved clarity and consistency.

Author: robinebers

plugins/copilot/plugin.json

@@ -7,13 +7,8 @@
   "icon": "icon.svg",
   "brandColor": "#A855F7",
   "lines": [
-    {
-      "type": "progress",
-      "label": "Premium",
-      "scope": "overview",
-      "primary": true
-    },
-    { "type": "progress", "label": "Chat", "scope": "overview" },
+    { "type": "progress", "label": "Premium", "scope": "overview", "primaryOrder": 1 },
+    { "type": "progress", "label": "Chat", "scope": "overview", "primaryOrder": 2 },
     { "type": "progress", "label": "Completions", "scope": "overview" }
   ]
 }