Offline Sync: EditPostActivity Conversion

[zwarm]

Fixes #20509

This PR marks the initial phase in simplifying the complexity of EditPostActivity.

In this PR is the conversion of EditPostActivity from Java to Kotlin. While Android Studio handled the bulk of the conversion, I manually did a bunch of cleanup to minimize the need for "most" suppressions. The lingering suppressions, include CyclomaticComplexMethod, ReturnCount, LargeMethod, and LargeClass. They will be addressed outside of this PR.

The ultimate objective is to refactor this class into coherent segments, streamlining the activity into a more manageable and maintainable structure.

The UI was not touched during this conversion

---

To Test:

Using the branch from this PR, thoroughly check the following create/edit post scenarios (and any others you can think of)

• ✅ Verify you can create a post

• ✅ Verify you can edit a post

• ✅ Verify you can edit post setting from within the edit post view

• ✅ Verify you can edit change the publish post settings

• ✅ Verify you can create/edit a post with images, galleries

• ✅ Verify you can create/edit a post with videos

• ✅ Verify your work is auto saved (use the web to look for changes)

• ✅ Verify you can return from background

• ✅ Verify you can save a post as a draft

• ✅ Verify you can't publish a post when media is uploading

• ✅ Verify you can set a featured image

• ✅ Verify CI passed the unit tests

• ✅ Verify CI passed the instrumentation tests

Regression Notes

1. Potential unintended areas of impact Edit post activities no longer work

2. What I did to test those areas of impact (or what existing automated tests I relied on) Manual testing of edit posts. No unit tests exist because it's an activity

3. What automated tests I added (or what prevented me from doing so) The existing instrumentation tests.

---

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):

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

[dangermattic]

	2 Warnings
:warning:	This PR is larger than 300 lines of changes. Please consider splitting it into smaller PRs for easier and faster reviews.
:warning:	Class RestartEditorOptions is missing tests, but unit-tests-exemption label was set to ignore this.

Generated by :no_entry_sign: Danger

[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	pr20543-25d7cb9
	Commit	25d7cb9760b435b2cd9f21318aacd948b6d695cf
	Direct Download	jetpack-prototype-build-pr20543-25d7cb9.apk

Note: Google Login is not supported on these builds.

[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	pr20543-25d7cb9
	Commit	25d7cb9760b435b2cd9f21318aacd948b6d695cf
	Direct Download	wordpress-prototype-build-pr20543-25d7cb9.apk

Note: Google Login is not supported on these builds.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 40.32%. Comparing base (21bf822) to head (25d7cb9). Report is 5 commits behind head on trunk.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## trunk #20543 +/- ## =========================================== - Coverage 82.58% 40.32% -42.26% =========================================== Files 15 1473 +1458 Lines 534 67852 +67318 Branches 50 11221 +11171 =========================================== + Hits 441 27362 +26921 - Misses 75 38024 +37949 - Partials 18 2466 +2448 ```

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

[sonarcloud[bot]]

Quality Gate passed

Issues
27 New issues
0 Accepted issues

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

See analysis details on SonarCloud

[sentry-io[bot]]

Suspect Issues

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

• ‼️ RuntimeException: android.os.TransactionTooLargeException: data parcel size 1785788 bytes org.wordpress.android.ui.uploads.UploadService ... View Issue

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