feat: make Web UI mood dropdowns Evil Mode-aware

- Disable per-server mood controls when Evil Miku is active
- Show explanatory notice for disabled server mood dropdowns
- Populate global mood dropdown with evil moods when Evil Mode is on
- Fix initialization race condition by awaiting evil mode status first
- Add CSS styles for disabled mood controls

bot/static/js/modes.js

@@ -90,6 +90,9 @@ function updateEvilModeUI() {
   }
 
   updateBipolarToggleVisibility();
+
+  // Update per-server mood controls to reflect evil mode state
+  populateMoodDropdowns();
 }
 
 // ===== GPU Selection Management =====