Improve code consistency and documentation readability

- Standardized Markdown formatting across documentation files.
- Fixed inconsistent usage of inline code blocks and improved syntax clarity.
- Updated tests and JSX for cleaner formatting and better readability.
- Adjusted E2E test navigation handlers for multiline code consistency.
- Simplified TypeScript configuration and organized JSON structure for better maintainability.

frontend/tests/app/page.test.tsx

@@ -10,7 +10,7 @@ import Home from '@/app/[locale]/page';
 jest.mock('next/image', () => ({
   __esModule: true,
   default: (props: any) => {
-    // eslint-disable-next-line @next/next/no-img-element, jsx-a11y/alt-text
+    // eslint-disable-next-line @next/next/no-img-element
     return <img {...props} />;
   },
 }));