message: Move feature flag check for new session toast
  Forgot the path where it checks on startup. Just put it in recheck which covers everything.
  Fixes
diff: @@ -56,17 +56,16 @@ export default class DeviceListener {
  _onDevicesUpdated = (users) => {
  if (!users.includes(MatrixClientPeg.get().getUserId())) return;
  - if (!SettingsStore.isFeatureEnabled("feature_cross_signing")) return;
  this.recheck();
  }
  _onDeviceVerificationChanged = (users) => {
  if (!users.includes(MatrixClientPeg.get().getUserId())) return;
  - if (!SettingsStore.isFeatureEnabled("feature_cross_signing")) return;
  this.recheck();
  }
  async recheck() {
  + if (!SettingsStore.isFeatureEnabled("feature_cross_signing")) return;
  const cli = MatrixClientPeg.get();
  if (!cli.isCryptoEnabled()) return false;
  