fix: load the jsoneditor extension so the Arrange dialog renders

The report's JSONEditor has its own JS bundle; the app only loaded the
agents' extensions plus filedropper, so a dynamically built report could
not render the editor. Add jsoneditor to the loaded extensions.

Author: ghostiee-11

lumen/ai/ui.py

@@ -1766,7 +1766,7 @@ def __panel__(self):
     def _create_view(self, server: bool = False):
         if server:
             panel_extension(
-                *{ext for agent in self._coordinator.agents for ext in agent._extensions} | {"filedropper"},
+                *{ext for agent in self._coordinator.agents for ext in agent._extensions} | {"filedropper", "jsoneditor"},
                 css_files=["https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/all.min.css"]
             )
             return self._page