Jetpack AI Logo Generator: Preserve user language when getting the first prompt

[zaguiini]

Closes #96665.

Proposed Changes

The prompt should be in the users' locale. Here's an example:

Why are these changes being made?

To maintain consistency with the users' language. Our previous prompt said to preserve the language but didn't say what the language was. Because we had examples in English and Spanish, it was preserving Spanish instead as it was the most comprehensive example.

Testing Instructions

Change your accounts' language to English and open the Logo Generator on any site. You should get the first prompt in English. Change the language to something other than English (Afrikaans, for example) and verify that the prompt is in Afrikaans. In my screenshot, it's in Italian.

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-125433

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-125433&env=jetpack

Automattic for Agencies live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-125433&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 fix/jetpack-ai-prompt-preserves-account-locale on your sandbox.

[matticbot]

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

Sections (~44 bytes added 📈 [gzipped])

name  parsed_size           gzip_size
home        +72 B  (+0.0%)      +44 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.

[dhasilva]

LGTM! Good catch!
The intention was to detect the language from the site's name and description, but this approach is better.

[candy02058912]

LGTM, although for Chinese, the AI can't distinguish between Traditional Chinese and Simplified Chinese, but that's a different issue.