fix(ci): resolve all lint errors for GitHub Actions

- Remove unused SupportedLocale import in results.tsx
- Remove unused webroot variable in public/i18n.js
- Configure knip.json to ignore i18n public API exports
- Add language-selector and language-option to ESLint ignore list
- Auto-fix Prettier formatting across all files
- Fix better-tailwindcss line wrapping issues

eslint.config.ts

@@ -61,6 +61,8 @@ export default tseslint.config(
             "target",
             "convert_to_target",
             "job-details-toggle",
+            "language-selector",
+            "language-option",
           ],
         },
       ],