Style popups, modals, and Spotlight search; fix card toggle and nav overlap

- Fix card show/hide toggle by removing !important from display: block
- Fix sidebar nav-tile.right overlap by removing position: sticky
- Remove card header separator line for smooth transition
- Add glass styling for Docker/VM context menu dropdowns
- Add glass styling for sweet-alert modals with light text
- Restyle search as centered Spotlight popup (600px, glass bg)
- Fix search icon click by removing inline onclick handler
- Update awesomplete dropdown with glass effect and proper spacing
- Increase glass brightness, blur, and card padding/typography

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

sidebar.js

@@ -54,6 +54,10 @@
     var link = searchItem.querySelector('a');
     if (!link) return;
 
+    // Remove any inline onclick handler (Unraid sets onclick="gui_search()")
+    link.removeAttribute('onclick');
+    link.onclick = null;
+
     // Replace hover with click
     link.addEventListener('click', function(e) {
       e.preventDefault();