chore: refactor tests to improve clarity and reliability

- Removed unnecessary test.skip() calls in various test files, replacing them with comments for clarity.
- Enhanced retry logic in TestDataManager for API requests to handle rate limiting more gracefully.
- Updated security helper functions to include retry mechanisms for fetching security status and setting module states.
- Improved loading completion checks to handle page closure scenarios.
- Adjusted WebKit-specific tests to run in all browsers, removing the previous skip logic.
- General cleanup and refactoring across multiple test files to enhance readability and maintainability.

frontend/src/components/ui/Tabs.test.tsx

@@ -137,7 +137,7 @@ describe('Tabs', () => {
     const tab1 = screen.getByRole('tab', { name: 'Tab 1' })
     const tab2 = screen.getByRole('tab', { name: 'Tab 2' })
 
-    tab1.focus()
+    await user.click(tab1)
     expect(tab1).toHaveFocus()
 
     // Arrow right should move focus and activate tab2