Integrate Translation framework

[kean]

Description

Closes CMM-745: On-device translation for posts.

Testing instructions

• Open Reader and find a post in a locale different from your current locale and supported by the Translation framework
• Tap "More" and verify that the Translate button is available
• Tap "Translate" and verify that the spinner is shown in the navigation items
• Verify that on the first translation, the system prompts you to download the required translations
• Verify that after translation is successful, both the title and the content are translated. The content should preserve its HTML structure and tags

Recording

ScreenRecording_12-22-2025.16-58-08_1.MP4

[kean]

It creates a little bit of a race condition, but in practice, it's extremely fast so it should not matter.

[sonarqubecloud]

Quality Gate passed

Issues
4 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

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📲 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	30218
	Version	PR #25089
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	Commit	866bd15
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[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	30218
	Version	PR #25089
	Bundle ID	com.jetpack.alpha
	Commit	866bd15
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