Prevents ANR when fetching reader post

[antonis]

Fixes #20641

Description

This PR prevents an ANR when fetching post by moving the DB operation to the background

---

To Test:

I was not able to reproduce this ANR thus I'd recommend a sanity of the functionality:

1. In the MySite screen select More>Comments
2. Tap on a comment
3. Verify that it load correctly and the like status loads correctly

---

Regression Notes

1. Potential unintended areas of impact

   • Reader post comment

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)

   • The specific code is hard to test without major refactoring

---

PR Submission Checklist:

• [x] I have completed the Regression Notes.
• [x] I have considered adding accessibility improvements for my changes.
• [x] I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

---

Testing Checklist (strike-out the not-applying and unnecessary ones):

• [ ] WordPress.com sites and self-hosted Jetpack sites.
• [ ] 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)

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[wpmobilebot]

📲 You can test the changes from this Pull Request in WordPress by scanning the QR code below to install the corresponding build.

	App Name	WordPress
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr20642-50b239d
	Commit	50b239d9375d35d1d3c8904d3e43ae6ec2d4ca2c
	Direct Download	wordpress-prototype-build-pr20642-50b239d.apk

Note: Google Login is not supported on these builds.

[wpmobilebot]

📲 You can test the changes from this Pull Request in Jetpack by scanning the QR code below to install the corresponding build.

	App Name	Jetpack
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr20642-50b239d
	Commit	50b239d9375d35d1d3c8904d3e43ae6ec2d4ca2c
	Direct Download	jetpack-prototype-build-pr20642-50b239d.apk

Note: Google Login is not supported on these builds.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes are missing coverage. Please review.

Project coverage is 40.46%. Comparing base (2f077fa) to head (50b239d).

Files	Patch %	Lines
...s/android/ui/reader/actions/ReaderPostActions.java	0.00%	4 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## trunk #20642 +/- ## ========================================== - Coverage 40.46% 40.46% -0.01% ========================================== Files 1484 1484 Lines 68413 68415 +2 Branches 11307 11307 ========================================== Hits 27683 27683 - Misses 38230 38232 +2 Partials 2500 2500 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[sentry-io[bot]]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ NullPointerException: Attempt to invoke virtual method 'java.lang.String android.content.Context.getPackageName()' on a... org.wordpress.android.ui.reader.ReaderActivityL... View Issue

_{Did you find this useful? React with a 👍 or 👎}