feat: enhance scheduler functionality and UI improvements

- Updated scheduler.js to improve tab switching and content display.
- Refactored script fetching logic to handle new data structure.
- Enhanced schedule creation and editing with updated payload structure.
- Improved trigger testing and creation with consistent naming conventions.
- Added new CSS styles for actions and plugins pages to enhance UI/UX.
- Introduced responsive design adjustments for better mobile experience.

web/css/pages/compat.css

@@ -1768,9 +1768,7 @@
 }
 
 /* ---- Final parity aliases ---- */
-.actions-container .sidebar-page {
-  display: block;
-}
+/* .actions-container .sidebar-page moved to actions.css */
 
 .vuln-container.page-with-sidebar {
   --page-sidebar-w: 300px;