v2.4.8: UI improvements, update popup fixes, per-profile branch tracking

- Fix auto-update popup: indeterminate progress fallback when no download events, show 100% on complete
- Remove macOS auto-update warning (app is now signed)
- Disable update popup pulse animation
- Remove news tab and news section from home screen
- Center play section vertically, add community links with colored icons
- Add game version + branch display on play page (from manifest)
- Add last played timestamp tracking
- Version badge links to git.sanhost.net releases
- Profiles now store version_branch and version_client per-configuration
- Profile switch restores branch/version and refreshes settings UI
- DevTools enabled in dev mode (electron . --dev)
- Reorder community links: Chat, Discord, TG Channel, TG Group, Source

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

GUI/js/script.js

@@ -1,7 +1,6 @@
 import './ui.js';
 import './install.js';
 import './launcher.js';
-import './news.js';
 import { initModsManager } from './mods.js';
 import './players.js';
 import './settings.js';