Fixes

#18726

This PR fixes a crash in Jetpack app on site creation activity. THis PR was introduced due to the change in the PR #18597 where the Jetpack overlay fragment was created/retrieved on orientation change. Since on Jetpack App, the jetpack feature overlay is not shown, the overlay events should not be subscribed.

test

Verify no crashes - JP app

1. Login to the Jetpack app
2. tap add a new site button → create wordpress.com site
3. when the jetpack overlay opens, change the orientation to the portrait/landscapre.
4. tap the x button.
5. verify that there are no crashes.

Regression testing - WP app

verify that there is no crash

1. launch wp app in the horizontal orientation.
2. sign up.
3. tap add a new site button → create wordpress.com site
4. when the jetpack overlay opens, change the orientation to the portrait.
5. tap the x button.
6. verify that there are no crashes.

verify that there is no crash and close button on horizontal direction works

1. launch wp app in the horizontal orientation.
2. sign up.
3. tap add a new site button → create wordpress.com site
4. tap the x button.
5. verify that there are no crashes and the previous screen is shown as intended

Regression Notes

1. Potential unintended areas of impact
   WP app site creation overlay is not shown

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

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 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.

UI Changes testing checklist:

• Portrait and landscape orientations.
• Light and dark modes.
• Fonts: Larger, smaller and bold text.
• High contrast.
• Talkback.
• Languages with large words or with letters/accents not frequently used in English.
• Right-to-left languages. (Even if translation isn’t complete, formatting should still respect the right-to-left layout)
• Large and small screen sizes. (Tablet and smaller phones)
• Multi-tasking: Split screen and Pop-up view. (Android 10 or higher)