message: Change "None" to "Off" in notification options
diff: @@ -75,7 +75,7 @@ export const RoomNotificationContextMenu = ({ room, onFinished, ...props }: IPro
  />;
  const muteOption: JSX.Element = <IconizedContextMenuRadio
  - label={_t("None")}
  + label={_t("Off")}
  active={notificationState === RoomNotifState.Mute}
  iconClassName="mx_RoomNotificationContextMenu_iconBellCrossed"
  onClick={wrapHandler(() => setNotificationState(RoomNotifState.Mute))}
  