message: Move key backup init to componentDidMount
diff: @@ -74,9 +74,7 @@ export default class SoftLogout extends React.Component {
  componentDidMount(): void {
  this._initLogin();
  - }
  - componentWillMount(): void {
  MatrixClientPeg.get().flagAllGroupSessionsForBackup().then(remaining => {
  this.setState({keyBackupNeeded: remaining > 0});
  });
  