Clone the example app, only use Mocha instead of Jest

Before picking this issue, it's recommended to have a short tech planning chat here and only then upon sync to get up to speed.

If I have time, I'll see if I can do this, but would love some new contributor help!

The and method is not supported by Jest, where Chai does support it.

It should probably cut the assertion in two:

- expect(ticketNumber).to.be.above(0).and.to.be.below(46)
+ expect(ticketNumber).toBeGreaterThan(0)
+ expect(ticketNumber).toBeLessThan(46)

Is this a feasible option for codemods?

If so: I'm willing to work on a PR.

Describe the bug

I have a Postgres query where I am trying to select a list of record with a timestamp within the last 7 days.

error properties: Object({ data: Object({ error: 'cannot cast type integer to date', code: undefined }), location: Object({ start: 0, end: 0 }) })

If I remove - 7 from the query it works. Is there a way or workaround to subtract 7 days from the CURR