feat: Preload editor settings within My Site

[dcalhoun]

Improve editor load speed through preloading the editor settings.

Testing instructions

Important

Enabling the Experimental block editor feature is required.

1: My Site without cache fetches editor settings

1. Observe the network activity of the app.
2. Install and launch the app.
3. Switch sites.
4. Verify a successful editor settings endpoint request is performed.

2: My Site with cache does not fetch editor settings

1. Switch to a previous site selected in test case 1.
2. Verify an editor settings endpoint request is not performed.

3: Editor utilizes stale-while-revalidate caching

1. Open the editor.
2. Verify a successful editor settings endpoint request is performed.
3. Repeat steps one and two.

[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	pr21815-7a03644
	Commit	7a03644
	Direct Download	wordpress-prototype-build-pr21815-7a03644.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	pr21815-7a03644
	Commit	7a03644
	Direct Download	jetpack-prototype-build-pr21815-7a03644.apk

Note: Google Login is not supported on these builds.

[Copilot]

Pull Request Overview

This PR improves editor load speed by preloading editor settings, leveraging caching to avoid unnecessary network requests. Key changes include:

• Adding a new optional parameter (skipNetworkIfCacheExists) to the FetchEditorSettingsPayload in EditorSettingsStore.kt and updating the fetch logic.
• Removing EditorSettingsStore dependency injection in EditPostActivity.kt to clean up unused references.
• Updating SelectedSiteRepository.kt to dispatch editor settings actions based on experimental feature flags and adding new dependencies.
• Injecting EditorSettingsStore in WPMainActivity.java to ensure the store processes dispatched actions.

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
libs/fluxc/src/main/java/org/wordpress/android/fluxc/store/EditorSettingsStore.kt	Introduces a new payload parameter, modifies fetchEditorSettings to support caching logic.
WordPress/src/main/java/org/wordpress/android/ui/posts/EditPostActivity.kt	Removes unused injection of EditorSettingsStore.
WordPress/src/main/java/org/wordpress/android/ui/mysite/SelectedSiteRepository.kt	Adds feature-flag-based logic to fetch editor settings and updates dependency injections.
WordPress/src/main/java/org/wordpress/android/ui/main/WPMainActivity.java	Injects EditorSettingsStore to ensure the store responds to dispatched actions.

[nbradbury]

@dcalhoun This tested fine and code looks good, but there are failing tests that should be addressed.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 39.32%. Comparing base (234d290) to head (7a03644).

Files with missing lines	Patch %	Lines
...dpress/android/ui/mysite/SelectedSiteRepository.kt	75.00%	1 Missing ⚠️

Additional details and impacted files

@@                      Coverage Diff                      @@
##           feat/provide-editor-settings   #21815   +/-   ##
=============================================================
  Coverage                         39.32%   39.32%           
=============================================================
  Files                              2125     2125           
  Lines                             99871    99871           
  Branches                          15385    15385           
=============================================================
  Hits                              39277    39277           
  Misses                            57114    57114           
  Partials                           3480     3480           

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