* Refactor dropdown components to use MenuDropdown for improved functionality and keyboard accessibility
- Replaced Dropdown with MenuDropdown in various components including BodyModeSelector, AuthMode, and RequestBodyMode.
- Updated styles and structure for better usability and accessibility.
- Removed unused Dropdown component and its associated styles.
- Enhanced action buttons in ResponsePane and Collection components with ActionIcon for better UI consistency.
* fix: Update HttpMethodSelector styles and tests for improved accessibility
- Changed the class name for the "Add Custom" button to include 'text-link' for better styling.
- Updated tests to use role-based queries for dropdown items, enhancing accessibility checks.
- Ensured the correct application of classes in tests to reflect the updated structure.
* refactor: Improve component accessibility and consistency
* fix: update hover behavior for collection actions menu in runner.ts
* refactor: streamline hover interactions for collection actions across tests
* refactor: enhance component structure and accessibility across response actions
* fix: correct fill property syntax in StyledWrapper for consistent styling
* refactor: simplify isDisabled logic in response components for clarity
* fix: correct tabIndex logic in ResponseCopy component for improved accessibility
* fix: update tabIndex logic in ResponseBookmark component for improved accessibility
* fix: enable action buttons in ResponsePaneActions for improved usability
* refactor: remove unnecessary tabIndex attributes in response components for improved accessibility
* refactor: remove keyDown event handlers from response components for cleaner interaction
* refactor: remove SidebarHeader component and related styles for improved structure
