Unified About: Remove dependencies

[frosty]

Refs #17498. This PR is part of the work required to extract the new About screen out into a reusable Swift package. It makes the app header information (title, version, and icon) and font selection configurable by the host app.

To test

• Build and run and ensure that the header in the about screen looks as expected
• Try changing the AppInfo and Fonts defined in WordPressAboutScreenConfiguration and check that your changes are reflected in the about screen. For example, you could change the fonts to:

static let fonts = AboutScreenFonts(appName: UIFont(name: "Zapfino", size: 28.0)!, appVersion: UIFont(name: "Chalkboard SE", size: 22.0)!)

to see the styles shown in the screenshot above.

Regression Notes

1. Potential unintended areas of impact

The appearance of the header

2. What I did to test those areas of impact (or what existing automated tests I relied on)

I ensured that the default styles match what we had previously.

3. What automated tests I added (or what prevented me from doing so)

N/A

PR submission checklist:

• I have completed the Regression Notes.
• I have considered adding unit tests for my changes.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

[peril-wordpress-mobile]

You can trigger an installable build for these changes by visiting CircleCI here.

[frosty]

I don't love all this font wrangling here, but it's a tricky font to construct and I don't think we want to necessarily go down the route of adding UIFont extensions to this package?

[Gio2018]

👍

[peril-wordpress-mobile]

You can trigger optional UI/connected tests for these changes by visiting CircleCI here.

[Gio2018]

just a small comment that can be safely ignored, other than that !