Fix tests / testing feasibility

[MelroyNoronha]

Adding redux-persist to the setup broke tests.

We tried:

1. Adding a redux-persist mock under the __mocks__ dir.
2. Adding redux-persist to transformIgnorePatterns.
3. Integrating redux-persist in the custom render method for tests.

[MelroyNoronha]

Tests don't work on the prototype.
For the actual app we'll commit to at least having snapshot tests maybe?

[MelroyNoronha]

Give the test setup another decent go and then we'll bail on it if it takes too long and come back to it later.
Let's not stall development for tests. At least on the first iteration of the app.