Fix/15651 - Followed sites in Reader > Following > Filter

[nikola-milicevic]

Part of #15651

Description

This PR fixes the Followed sites list in Reader > Following > Filter.

Screenshots

Web version	Current behaviour	Desired Behaviour

To test:

1. Make sure you follow JP, WP and a non-JP, non-WP sites.
2. List of the followed sites in the web version and the App version in Reader > Following > Filter should match.

Regression Notes

1. Potential unintended areas of impact
   Not sure.

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.

[peril-wordpress-mobile]

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

[peril-wordpress-mobile]

	Warnings
⚠️	This PR is assigned to a milestone which is closing in less than 4 days Please, make sure to get it merged by then or assign it to a later expiring milestone

Generated by 🚫 dangerJS

[nikola-milicevic]

👋 @ScoutHarris I'm tagging you here since you've worked on the issue. It would be great if you could take a look at this and point out any potential unintended areas of impact, since I'm not aware of any, and it was all good in my testing environment.

[peril-wordpress-mobile]

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

[momo-ozawa]

Works as described! I'll defer approval to @ScoutHarris, just in case there's any unintended areas of impact 🙏

[ScoutHarris]

Sorry I didn't get to this yesterday!

Not sure the history of excluding external sites before, but I see no reason not to now. So 👍 from me.

(Also FYI - the UI tests will be fixed with this change.)

[ScoutHarris]

@nikola-milicevic I went ahead and merged this so it would make the release.

[nikola-milicevic]

@ScoutHarris Great, thanks! 😊