test: preferences fragments screenshots

[BrayanDSO]

go go screenshot tests

How Has This Been Tested?

./gradlew :AnkiDroid:recordRoborazziPlayDebug -Pscreenshot --tests "com.ichi2.anki.preferences.PreferencesScreenshotTest"

Checklist

Please, go through these checks before submitting the PR.

• You have a descriptive commit message with a short title (first line, max 50 chars).
• You have commented your code, particularly in hard-to-understand areas
• You have performed a self-review of your own code
• UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)
• UI Changes: You have tested your change using the Google Accessibility Scanner

[BrayanDSO]

do I still need to add my copyright? @david-allison

[david-allison]

Pending a decision/discussion/issue.

Leave them on to be safe. Push the decision forward if you wish (I'd also rather remove them).

https://reuse.software/tutorial/ requires both tags.

The Kernel doesn't have this requirement. I don't think REUSE is beneficial for us, but leaving copyright tags on now is much easier than applying them later if we change course.

[david-allison]

Pending copyright