Searching by order ID

[brianhogg]

Description

If a number is typed into the orders field, assume it's an order ID and search by it.

Fixes #1583

Props @bsetiawan88 for the initial work!

How has this been tested?

Manually

Screenshots

Checklist:

• [x] This PR requires and contains at least one changelog file. <!-- To create a changelog yml file: npm run dev changelog add -- -i and follow the prompt. See also: https://github.com/gocodebox/lifterlms/blob/trunk/packages/dev/README.md#changelog-add -->
• [x] My code has been tested.
• [x] My code passes all existing automated tests.
• [x] My code follows the LifterLMS Coding & Documentation Standards.