Add EntitySelect/IconSelect UI improvements across modals

- Portal IconSelect popups to document.body with position:fixed to prevent
  clipping by modal overflow-y:auto
- Replace custom scene selectors in automation editor with EntitySelect
  command-palette pickers (main scene + fallback scene)
- Add IconSelect grid for automation deactivation mode (none/revert/fallback)
- Add IconSelect grid for automation condition type and match type
- Replace mapped zone source dropdowns with EntitySelect pickers
- Replace scene target selector with EntityPalette.pick() pattern
- Remove effect palette preview bar from CSS editor
- Remove sensitivity badge from audio color strip source cards
- Clean up unused scene-selector CSS and scene-target-add-row CSS
- Add locale keys for all new UI elements across en/ru/zh

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

server/src/wled_controller/api/routes/scene_presets.py

@@ -133,14 +133,42 @@ async def update_scene_preset(
     data: ScenePresetUpdate,
     _auth: AuthRequired,
     store: ScenePresetStore = Depends(get_scene_preset_store),
+    target_store: OutputTargetStore = Depends(get_output_target_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
 ):
-    """Update scene preset metadata."""
+    """Update scene preset metadata and optionally change targets."""
+    # If target_ids changed, update the snapshot: keep state for existing targets,
+    # capture fresh state for newly added targets, drop removed ones.
+    new_targets = None
+    if data.target_ids is not None:
+        try:
+            existing = store.get_preset(preset_id)
+        except ValueError as e:
+            raise HTTPException(status_code=404, detail=str(e))
+
+        existing_map = {t.target_id: t for t in existing.targets}
+        new_target_ids = set(data.target_ids)
+
+        # Capture fresh state for newly added targets
+        added_ids = new_target_ids - set(existing_map.keys())
+        fresh = capture_current_snapshot(target_store, manager, added_ids) if added_ids else []
+        fresh_map = {t.target_id: t for t in fresh}
+
+        # Build new target list preserving order from target_ids
+        new_targets = []
+        for tid in data.target_ids:
+            if tid in existing_map:
+                new_targets.append(existing_map[tid])
+            elif tid in fresh_map:
+                new_targets.append(fresh_map[tid])
+
     try:
         preset = store.update_preset(
             preset_id,
             name=data.name,
             description=data.description,
             order=data.order,
+            targets=new_targets,
         )
     except ValueError as e:
         raise HTTPException(status_code=404 if "not found" in str(e).lower() else 400, detail=str(e))