Add some missing access modifiers

[kean]

same story as #24386 but for Keystone

To test:

Regression Notes

1. Potential unintended areas of impact

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

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

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.

Testing checklist:

• WordPress.com sites and self-hosted Jetpack sites.
• Portrait and landscape orientations.
• Light and dark modes.
• Fonts: Larger, smaller and bold text.
• High contrast.
• VoiceOver.
• 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)
• iPhone and iPad.
• Multi-tasking: Split view and Slide over. (iPad)

[dangermattic]

	1 Warning
⚠️	This PR is assigned to the milestone 25.9. The due date for this milestone has already passed. Please assign it to a milestone with a later deadline or check whether the release for this milestone has already been finished.

Generated by 🚫 Danger

[Copilot]

Copilot wasn't able to review any files in this pull request.

Files not reviewed (13)

• WordPress/Classes/Extensions/Colors and Styles/UIColor+MurielColorsObjC.swift: Language not supported
• WordPress/Classes/Models/Blog/Blog+Creation.swift: Language not supported
• WordPress/Classes/Models/Blog/Blog+WordPressComRestAPI.swift: Language not supported
• WordPress/Classes/Models/ReaderPost+Swift.swift: Language not supported
• WordPress/Classes/Services/MediaRepository.swift: Language not supported
• WordPress/Classes/Services/NotificationSupportService.swift: Language not supported
• WordPress/Classes/Stores/StatsPeriodCache.swift: Language not supported
• WordPress/Classes/System/WordPressAppDelegate.swift: Language not supported
• WordPress/Classes/Utility/Analytics/WPAnalytics+Domains.swift: Language not supported
• WordPress/Classes/Utility/Analytics/WPAnalyticsEvent.swift: Language not supported
• WordPress/Classes/Utility/Analytics/WPAppAnalytics+Extensions.swift: Language not supported
• WordPress/Classes/Utility/Notifications/PushNotificationsManager.swift: Language not supported
• WordPress/Classes/ViewRelated/Jetpack/Branding/Coordinator/JetpackFeaturesRemovalCoordinator.swift: Language not supported

[mokagio]

Thank you for opening this as a dedicated PR.

Easy to review, just scroll and check the green pattern of public. Then, if CI is green, we're good to merge.

I asked Copilot to review just out of curiosity.

PS. Love the unique identifier in the branch name.

[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
	Configuration	Release-Alpha
	Build Number	27023
	Version	PR #24388
	Bundle ID	org.wordpress.alpha
	Commit	5c3916d
	Installation URL	2a1dg6dot9clo

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[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
	Configuration	Release-Alpha
	Build Number	27023
	Version	PR #24388
	Bundle ID	com.jetpack.alpha
	Commit	5c3916d
	Installation URL	3fh723776k85g

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.