message: Add MatrixEvent type
diff: @@ -24,6 +24,7 @@ import Spinner from '../elements/Spinner';
  import InteractiveAuthDialog from '../dialogs/InteractiveAuthDialog';
  import ConfirmDestroyCrossSigningDialog from '../dialogs/security/ConfirmDestroyCrossSigningDialog';
  import { replaceableComponent } from "../../../utils/replaceableComponent";
  +import { MatrixEvent } from '../../../../../matrix-js-sdk/src';
  interface IState {
  error?: Error;
  @@ -63,7 +64,7 @@ export default class CrossSigningPanel extends React.PureComponent<{}, IState> {
  cli.removeListener("crossSigning.keysChanged", this.onStatusChanged);
  }
  - private onAccountData = (event): void => {
  + private onAccountData = (event: MatrixEvent): void => {
  const type = event.getType();
  if (type.startsWith("m.cross_signing") || type.startsWith("m.secret_storage")) {
  this.getUpdatedStatus();
  