Stacklume v0.5.1

Hotfix v0.5.1

🐛 Bug Fixes

• Link Collection: links reappear after removal — Fixed stale closure in handleRemoveFromCollection. All config-mutating callbacks now use a ref to always read fresh widget.config instead of capturing it in the useCallback closure.
• Production crash (random browser error page) — Fixed O(n²) performance bottleneck: collectionLinkIds.includes() replaced with Set.has() for O(1) lookups in render loops. Prevented main thread starvation that caused WebView2 to show error page.
• Tray icon freezing — Root cause was layout thrashing from auto-rows-fr CSS grid + container queries. Removed fractional row sizing. Main thread no longer blocks, so Three.js animation continues smoothly.
• Image crash on invalid URLs — Added ^https?:// validation on imageUrl and faviconUrl before rendering <Image>. Prevents crashes from malformed or empty URLs stored in the database.
• SW cache bumped to v14