Date: update translation domains for strings to be translatable

[oandregal]

Follow-up to #53931
Related conversation #53888 (comment)

What

Updates the translation domain of some strings.

Why

Otherwise:

1. Relative time strings won't be translatable unless Gutenberg is using a WordPress versions in which they are. The sooner this could be the to be released WordPress 6.4.
2. Existing format strings were merged into WordPress core 5 years ago (see git blame), so they are already translated by core. Given Gutenberg is not redefined them, we can use the existing core strings.

[github-actions]

This pull request has changed or added PHP files. Please confirm whether these changes need to be synced to WordPress Core, and therefore featured in the next release of WordPress.

If so, it is recommended to create a new Trac ticket and submit a pull request to the WordPress Core Github repository soon after this pull request is merged.

If you're unsure, you can always ask for help in the #core-editor channel in WordPress Slack.

Thank you! ❤️

View changed files

❔ lib/compat/wordpress-6.4/script-loader.php

[andrewserong]

LGTM, thanks for updating and for linking through to the discussion!

[ramonjd]

PHP backport here: WordPress/wordpress-develop#5101

I'll remove the label.

Thanks a lot for this PR and solving the context question!