Feature Highlight Tooltip follow button callback

[alpavanoglu]

Refs pbArwn-4oo-p2

To test:

1. Enable local feature flag "Feature Highlight Tooltip".
2. Go to Reader, into any post that is not already followed.
3. Tap on anchor or scroll to Tooltip.
4. Tap on "Follow Conversation" button
5. The tooltip and pulse indicator must be dismissed.
6. Tooltip shouldn't be shown again (either on another post or once this post is unfollowed and opened again).

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:

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[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 pr18848-9ed2473 on your iPhone

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

[wargcm]

It properly dismisses when I tap on 'Follow conversation' but for this:

Tooltip shouldn't be shown again (either on another post or once this post is unfollowed and opened again).

I'm seeing it appear again after I unfollow and then view the post again.

follow-conversation-callback.mp4

[wargcm]

@alpavanoglu It properly hides it now after tapping on 'Follow conversation'. LGTM!