Update to only show the LifterLMS-authored Add Ons on the All section of the Addons and more screen.

[kimcoleman]

Description

The Addons & more screen has an All tab that was showing every product. We spoke internally and want this tab to rather just show the LifterLMS-authored Addons (not include third party).

How has this been tested?

Tested locally

Types of changes

Bug fix (non-breaking change which fixes an issue)

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.