[Cashtab] Implement standardized test wrappers in Receive.test.js
Summary:
T3444
Implement standardized test wrapper in Receive tests. Add a test to confirm onboarding condition. Combine tests that do not require re-renders.
Test Plan: npm test
Reviewers: #bitcoin_abc, emack
Reviewed By: #bitcoin_abc, emack
Differential Revision: https://reviews.bitcoinabc.org/D15564