Frontend update + Misc fixes (#735)

- Updated frontend CSS to Tailwind v4
- Reverted socket IO origin restriction
- Fixed search queries not persisting after auth redirect
- Move advanced search options to left UI selector
- Unlock IRC source to be used for audiobook content_type
- Tweaked security settings env var syncing to be prioritised
- Fix AA "all languages" query generation
- Added language-free AA query as second fallback in case of no results
- Testing moving SeleniumBase scratch files to /tmp via symlink
- Added enhanced logging for activity dismissals and other events
- Removed iFrame restrictions

src/frontend/package.json

@@ -12,19 +12,20 @@
     "test:unit:build": "rm -rf ../../.local/frontend-test-dist && tsc -p tsconfig.tests.json"
   },
   "dependencies": {
+    "@tailwindcss/vite": "^4.2.1",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "react-router-dom": "^6.30.3",
     "socket.io-client": "^4.7.5"
   },
   "devDependencies": {
+    "@tailwindcss/postcss": "^4.2.1",
     "@types/node": "^24.10.0",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",
     "@vitejs/plugin-react": "^5.1.4",
-    "autoprefixer": "^10.4.16",
     "postcss": "^8.4.32",
-    "tailwindcss": "^3.4.0",
+    "tailwindcss": "^4.2.1",
     "typescript": "^5.5.3",
     "vite": "^7.3.1"
   }