Merge pull request [#30](https://github.com/RetroGameSets/RGSX/issues/30) from SeeThruHead/main
Refactor Docker setup with proper volume separation and backwards compatibility
Implemented environment variable-based configuration to support both Docker
and traditional Batocera/RetroBat installations with a single codebase.
- update integrated roms info scraper to use tgdb api instead of https web requests
- Add Docker support (web server)
- Add region filters (web server)
- Add one-ROM-per-game filter with region priority (web server)
- Refactor code structure in RGSX Web to improved readability and maintainability (js, css, html separated)
- update language files and correct a bug that crash
when changing language, or changing filter
