message: Check cross-signing cached keys when showing setup button
diff: @@ -187,12 +187,18 @@ export default class CrossSigningPanel extends React.PureComponent {
  }
  const keysExistAnywhere = (
  + crossSigningPublicKeysOnDevice ||
  crossSigningPrivateKeysInStorage ||
  - crossSigningPublicKeysOnDevice
  + masterPrivateKeyCached ||
  + selfSigningPrivateKeyCached ||
  + userSigningPrivateKeyCached
  );
  const keysExistEverywhere = (
  + crossSigningPublicKeysOnDevice &&
  crossSigningPrivateKeysInStorage &&
  - crossSigningPublicKeysOnDevice
  + masterPrivateKeyCached &&
  + selfSigningPrivateKeyCached &&
  + userSigningPrivateKeyCached
  );
  const actions = [];
  