[Reader] Rename the label to edit/manage Tags and Sites

[daniloercoli]

Fixes #20454
This PR changes the Edit label to Manage in the bottom sheet that allows you to select Tags and Sites.

Ref: p1710330177642939-slack-C05N140C8H5

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To Test:

• Open the Reader
• Go to Subscriptions and tap on the Tag pill
• The bottom sheet that shows Your Tags, shows the Manage label on top-right.
• Tapping on Manage open the Manage Tags and Sites screen
• Repeat the steps above for Blogs

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PR Submission Checklist:

• I have completed the Regression Notes.
• 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.

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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]

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 Jetpack by scanning the QR code below to install the corresponding build.

	App Name	Jetpack
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr20457-74d017f
	Commit	74d017f
	Direct Download	jetpack-prototype-build-pr20457-74d017f.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	pr20457-74d017f
	Commit	74d017f
	Direct Download	wordpress-prototype-build-pr20457-74d017f.apk

Note: Google Login is not supported on these builds.

[RenanLukas]

Thanks for the PR, @daniloercoli.
It's working as expected and code LGTM

Perhaps later it also makes sense to change the manage screen title to "Manage" instead of "Manage Tags & Blogs" in a separate issue.