Unregister refreshPeerList on unmount
Unregister refreshPeerList on unmount

Fix copy-paste issue, replacing "$on" with "$off" when unmounting the
call view.

Signed-off-by: Vincent Petry <87e1f221a672a14a323e57bb65eaea19d3ed3804@nextcloud.com>

nextcloud/spreed,nextcloud/spreed,nextcloud/spreed