Clean up packages and old references to eslint config (#158)

* Update dependencies and configuration files

- Upgrade Lucide React to version 0.475.0
- Update Markdoc to version 0.5.0
- Bump ESLint to version 9.20.0
- Update Tailwind CSS to version 4.0.5
- Add import-in-the-middle to Sentry package
- Remove import-in-the-middle and require-in-the-middle from web app
- Update browserslist configuration
- Remove eslintConfig from web app package.json
- Add ESLint configuration template for package generator

packages/features/auth/package.json

@@ -31,7 +31,7 @@
     "@supabase/supabase-js": "2.48.1",
     "@tanstack/react-query": "5.66.0",
     "@types/react": "19.0.8",
-    "lucide-react": "^0.474.0",
+    "lucide-react": "^0.475.0",
     "next": "15.1.6",
     "react-hook-form": "^7.54.2",
     "react-i18next": "^15.4.0",