Text selection in the AI Panel’s thread messages does not work like a normal editor

[yoshi-taka]

In Zed’s AI Panel, the text inside a thread message is difficult to select and copy.
It does not behave like a normal text editor, and shortcuts such as Shift + Down or Ctrl/Cmd + Shift + Down do not expand the selection.
It would be helpful if the AI Panel supported standard text-selection behavior for thread messages.