Limit Global Styles: Update the Privacy settings upgrade notice

[Copons]

Proposed Changes

• Update the copy of the Global Styles gating upgrade nudge in the General -> Privacy settings.
• Also update the "Upgrade" link to automatically suggest the Premium plan when opening the Plans page.

Before	After

Testing Instructions

• Create a new site and apply the wpcom-limit-global-styles sticker.
• Run these changes in a development environment (local, Calypso Live, wpcalypso).
• Open the Site Editor, change some Global Styles and save.
• Open Settings -> General and scroll to the Privacy section.
• ⚠️ Ensure the upgrade notice appears and it uses the updated copy.
• Click on "Upgrade".
• ⚠️ Ensure it opens the plans comparison page, and the Premium plan is suggested.

Pre-merge Checklist

• Have you written new tests for your changes?
• Have you tested the feature in Simple (P9HQHe-k8-p2), Atomic (P9HQHe-jW-p2), and self-hosted Jetpack sites (PCYsg-g6b-p2)?
• Have you checked for TypeScript, React or other console errors?
• Have you used memoizing on expensive computations? More info in Memoizing with create-selector and Using memoizing selectors and Our Approach to Data
• Have we added the "[Status] String Freeze" label as soon as any new strings were ready for translation (p4TIVU-5Jq-p2)?
• For changes affecting Jetpack: Have we added the "[Status] Needs Privacy Updates" label if this pull request changes what data or activity we track or use (p4TIVU-ajp-p2)?

Related to #

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-50526

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-50526&env=jetpack

[matticbot]

Here is how your PR affects size of JS and CSS bundles shipped to the user's browser:

Sections (~25 bytes added 📈 [gzipped])

name      parsed_size           gzip_size
settings        +47 B  (+0.0%)      +25 B  (+0.0%)

Sections contain code specific for a given set of routes. Is downloaded and parsed only when a particular route is navigated to.

Legend

What is parsed and gzip size?

Parsed Size: Uncompressed size of the JS and CSS files. This much code needs to be parsed and stored in memory.
Gzip Size: Compressed size of the JS and CSS files. This much data needs to be downloaded over network.

Generated by performance advisor bot at iscalypsofastyet.com.

[dsas]

Does what it says 👍 Similar to other nudges, it would be nice to link to what the style changes are somehow, but that's a potential future improvement.

[a8ci18n]

This Pull Request is now available for translation here: https://translate.wordpress.com/deliverables/7650317

Thank you @Copons for including a screenshot in the description! This is really helpful for our translators.

[a8ci18n]

This Pull Request is now available for translation here: https://translate.wordpress.com/deliverables/7650317

Thank you @Copons for including a screenshot in the description! This is really helpful for our translators.

[a8ci18n]

Translation for this Pull Request has now been finished.