fix: add sonner dependency for toast notifications

- Add sonner@^1.5.0 to webui dependencies
- Fixes build error in queue page where toast notifications are used
- Enables proper user feedback for queue actions

webui/package.json

@@ -20,7 +20,8 @@
     "next-themes": "^0.4.6",
     "react": "19.2.0",
     "react-dom": "19.2.0",
-    "react-syntax-highlighter": "^15.6.1"
+    "react-syntax-highlighter": "^15.6.1",
+    "sonner": "^1.5.0"
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4",