alexei.dolgolyov 82e12ffaac Fix critical frontend issues: race conditions, memory leaks, silent failures ...

- Add loading guard to loadPictureSources to prevent concurrent fetches
- Pause perf chart polling and uptime timer when browser tab is hidden
- Disconnect KC and LED preview WebSockets when leaving targets tab
- Add error toasts to loadCaptureTemplates and saveKCBrightness
- Skip auto-refresh polling when document is hidden
- Widen auto-start dashboard cards for better text display

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

2026-02-25 17:29:47 +03:00

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wled_controller

Fix critical frontend issues: race conditions, memory leaks, silent failures

2026-02-25 17:29:47 +03:00