🔧(frontend) configure Prettier and ESLint

Set up Prettier with minimal configuration. Installed eslint-config-prettier to
prevent conflicts between ESLint and Prettier.

src/frontend/package.json

@@ -8,7 +8,8 @@
     "build": "panda codegen && tsc -b && vite build",
     "lint": "eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
     "preview": "vite preview",
-    "i18n:extract": "npx i18next -c i18next-parser.config.json"
+    "i18n:extract": "npx i18next -c i18next-parser.config.json",
+    "format": "prettier --write ./src"
   },
   "dependencies": {
     "@livekit/components-react": "2.3.3",
@@ -40,10 +41,12 @@
     "@typescript-eslint/parser": "7.13.1",
     "@vitejs/plugin-react": "4.3.1",
     "eslint": "8.57.0",
+    "eslint-config-prettier": "9.1.0",
     "eslint-plugin-jsx-a11y": "6.9.0",
     "eslint-plugin-react-hooks": "4.6.2",
     "eslint-plugin-react-refresh": "0.4.7",
     "postcss": "8.4.39",
+    "prettier": "3.3.3",
     "typescript": "5.5.2",
     "vite": "5.3.1",
     "vite-tsconfig-paths": "4.3.2"