Setting `useBodyMarkup` to `true` fails with:
JS ERROR: TypeError: this.setBody is not a function
set useBodyMarkup@resource:///org/gnome/shell/ui/messageList.js:585:14
Fixes: f0e863f529 "messageList: Use GObject properties for Message"
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3232>
if (this._useBodyMarkup === enable)
return;
this._useBodyMarkup = enable;
- this.setBody(this._bodyText);
+ this.body = this._bodyText;
this.notify('use-body-markup');
}