Implement active task management for downloads and generations, enhancing user experience with toast notifications for ongoing tasks. Refactor language handling in forms to support multiple languages. Update audio player to manage restart functionality and improve sidebar icon representation. Adjust progress tracking for model downloads in the backend.

backend/utils/progress.py

@@ -2,7 +2,7 @@
 Progress tracking for model downloads using Server-Sent Events.
 """
 
-from typing import Optional, Callable, Dict
+from typing import Optional, Callable, Dict, List
 from fastapi.responses import StreamingResponse
 import asyncio
 import json
@@ -58,6 +58,15 @@ class ProgressManager:
         """Get current progress for a model."""
         return self._progress.get(model_name)
     
+    def get_all_active(self) -> List[Dict]:
+        """Get all active downloads (status is 'downloading' or 'extracting')."""
+        active = []
+        for model_name, progress in self._progress.items():
+            status = progress.get("status", "")
+            if status in ("downloading", "extracting"):
+                active.append(progress.copy())
+        return active
+    
     def create_progress_callback(self, model_name: str, filename: Optional[str] = None):
         """
         Create a progress callback function for HuggingFace downloads.