Koala73/worldmonitor New commit

[gavinlovespython]

feat: add category pills and search filter to Panels tab (koala73/worldmonitor#322)
Panels tab now mirrors Sources tab UX with scrollable category
pills and a text search input. PANEL_CATEGORY_MAP provides
variant-aware groupings (full: 6 categories, tech: 4, finance: 7)
so users can quickly find panels instead of scrolling 50+ items.