Add id "/" and lang "de" fields to manifest.json. Add display_override with window-controls-overlay/standalone options and prefer_related_applications:false. Replace single media-mark.svg icon with 192x192 and 512x512 sized variants (media-mark-192.svg, media-mark-512.svg) containing gradient background, yellow strokes, and green circle with glow filter. Update service worker cache to v3 with scope "/" parameter
Update project name from "Radarr Language Dashboard v2" to "Media Max" in README.md, docker-compose.yml service/container names, app.py logger name and service definition, manifest.json name/short_name/description, and templates/index.html title and header elements. Update docker exec command example in README to use new container name.
Add manifest.json with app metadata, theme colors, and icon configuration for installable PWA. Add service worker (sw.js) with shell caching strategy for offline support - caches static assets on install, cleans old caches on activate, and implements network-first fetch with cache fallback for non-API requests.
Update index.html with PWA meta tags (theme-color, mobile
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