Update manifest.json

Author: semanticdata

manifest.json

@@ -23,7 +23,7 @@
       "192": "src/icons/chatgpt-192x192.png"
     },
     "default_title": "ChatGPT",
-    "default_panel": "sidebar/panel.html"
+    "default_panel": "src/sidebar/panel.html"
   },
   "icons": {
     "16": "src/icons/chatgpt-16x16.png",