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/src/app/globals.css

@@ -218,4 +218,4 @@ button:disabled,
 a[aria-disabled='true'],
 select:disabled {
   cursor: not-allowed;
-}
+}