[Cashtab] Improve Token component tests

Summary:
Saw a test failure for one of these tests looking for the Address input component.

Make component queryer more generic, as this would be 'Address or Alias' if aliases are enabled.

Wait for component to determine token type before looking for components.

Test Plan: npm test

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Differential Revision: https://reviews.bitcoinabc.org/D16030