Blogging Prompts: Hide self-hosted sites in the site picker from the prompts intro view

[wargcm]

See: #18429

Description

Filters out self-hosted sites from the site picker when tapping on 'Try it now' from the prompts feature introduction view.

Testing

Note: I don't have any self-hosted sites, so I manually changed the return value from isAccessibleThroughWPCom. It might be easier doing it this way unless you have a self-hosted site.

To test:

• Enable bloggingPrompts feature flag in FeatureFlag.swift
• Log in if necessary and navigate to the dashboard
• When the prompts feature introduction screen appears, tap on 'Try it now'
• Verify no self-hosted sites display

Regression Notes

1. Potential unintended areas of impact
   N/A

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

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.

[wpmobilebot]

You can test the changes in Jetpack from this Pull Request by:

• Clicking here or scanning the QR code below to access App Center
• Then installing the build number pr18829-e932d8e on your iPhone

If you need access to App Center, please ask a maintainer to add you.

[wpmobilebot]

You can test the changes in WordPress from this Pull Request by:

• Clicking here or scanning the QR code below to access App Center
• Then installing the build number pr18829-e932d8e on your iPhone

If you need access to App Center, please ask a maintainer to add you.

[alpavanoglu]

Oops I forgot to publish my review :-] It isn't major but I also think it could be misleading later if we skip it now

[alpavanoglu]

The name of this variable should be updated I think to something like filteredBlogs as now it won't be allBlogs all times.

[wargcm]

True, it's a bit misleading at the moment. I updated this variable with your suggestion and the allBlogsCount to blogsCount in e932d8e. Thanks!

[ScoutHarris]

Created a self-hosted site via jurassic.ninja and verified it didn't show in the list.

[wargcm]

Thank you @ScoutHarris!