chore: bump version to 0.6.0

Incremented version from 0.5.3 to 0.6.0 for release with new features.

This release includes:
- Smart watchlist refresh on navigation
- Improved WatchList UI with manual refresh button
- Client-side routing for logo navigation
- Better UX with automatic data updates

Version bump reflects significant feature additions and improvements to the user experience.

wails.json

@@ -12,6 +12,6 @@
   },
   "info": {
     "productName": "AniTrack",
-    "productVersion": "0.5.3"
+    "productVersion": "0.6.0"
   }
 }