Updates to design choice step copy

[p-jackson]

Related to pdtkmj-3kX-p2#comment-6290
Fixes #99236

Proposed Changes

• Adjust width of design choice button in goals-first flow
• Update Create with AI choice description in goals-first flow
  • "quickly and easily", not "easily and quickly"
• Update price badge to use /month instead of a month
• Ensure copy changes only happen once translations are complete

Before

After

The control path still looks like

Why are these changes being made?

These changes were in the original Figma. It was pointed out during the CfT that the english copy could wrap a big nicer, and in the original Figma it did.

Testing Instructions

• Assign yourself to a treatment group in goals-first and big sky experiments
  • /setup/onboarding
  • Click Next on goals screen and observe design choice screen
• Assign yourself to control goals-first experiment
  • /setup/onboarding
  • Remember to choose a paid plan
  • Click next till you get to the design choice screen

Pre-merge Checklist

• Has the general commit checklist been followed? (PCYsg-hS-p2)
• 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 UI changes, have we tested the change in various languages (for example, ES, PT, FR, or DE)? The length of text and words vary significantly between languages.
• 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-aUh-p2)?

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-131851

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-131851&env=jetpack

Automattic for Agencies live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-131851&env=a8c-for-agencies

[matticbot]

This PR modifies the release build for the following Calypso Apps:

For info about this notification, see here: PCYsg-OT6-p2

• notifications

To test WordPress.com changes, run install-plugin.sh $pluginSlug update/tweaks-to-choice-screen on your sandbox.

[matticbot]

This PR does not affect the size of JS and CSS bundles shipped to the user's browser.

Generated by performance advisor bot at iscalypsofastyet.com.

[p-jackson]

@fditrapani back in #99008 (comment) we decided it was ok for the price badge to say "$5 a month" instead of "$5/month". But in this PR I'm updating it to use the slash.

This is for the sake of future consistency passes. We use slashes in the escape hatch modal, so it seems we should too.

I originally made the switch because we already had translations for "a month", so I'm making sure this change only happens once we have the translations ready for "/month"

[fditrapani]

Good catch. Sounds good! Thanks for updating and notifying me.

[a8ci18n]

Translation for this Pull Request has now been finished.