Listen for and update the notification state when they change (#9438)
Listen for and update the notification state when they change (#9438)

* Listen for and update the notification state when they change

* Remove unnecessary listeners: justify each listener left remaining

* Update removeListener too
matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk