Replace override raw-loader with ?raw query (#33854)

* Replace override raw-loader with `?raw` query

For compatibility with vite/st

* Make knip happy

* Fix icon in Jitsi lobby

* Fix jest config for `?raw`

* Remove stale `$webapp` alias

* Ensure css files loaded as `?raw` do not get bundled

apps/web/package.json

@@ -216,7 +216,6 @@
         "postcss-scss": "4.0.9",
         "postcss-simple-vars": "7.0.1",
         "process": "^0.11.10",
-        "raw-loader": "^4.0.2",
         "semver": "^7.5.2",
         "source-map-loader": "^5.0.0",
         "stylelint": "^17.0.0",