Update the gemini panel when we show/hide the TopUnreadMessagesBar
Update the gemini panel when we show/hide the TopUnreadMessagesBar

Showing/hiding the TopUnreadMessagesBar resizes the scrollpanel. Make sure that
we update the gemini panel when this happens.

(Fixes an intermittent bug wherein we could get stuck with a 'scroll to bottom'
indicator after jumping to the bottom, with unread messages in the view)

matrix-org/matrix-react-sdk,aperezdc/matrix-react-sdk,aperezdc/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,aperezdc/matrix-react-sdk,matrix-org/matrix-react-sdk,aperezdc/matrix-react-sdk,matrix-org/matrix-react-sdk