Added relative time strings for the wp-date inline script output.

[ramonjd]

This PR syncs the changes in:

• Date: add relative time translations for moment.js gutenberg#53931

Updates wp_default_packages_inline_scripts() to add relative time strings to the wp-date inline script.

This is so the JS version of human_time_diff can output translated strings.

It uses these translated strings in moment calculations. See the relevant model: https://momentjscom.readthedocs.io/en/latest/moment/07-customization/07-relative-time/

Trac ticket: https://core.trac.wordpress.org/ticket/59219

---

This Pull Request is for code review only. Please keep all other discussion in the Trac ticket. Do not merge this Pull Request. See GitHub Pull Requests for Code Review in the Core Handbook for more details.

[mukeshpanchal27]

Thanks @ramonjd for the PR. Left question related to text domain.

[swissspidy]

Doesn't this also partially address https://core.trac.wordpress.org/ticket/47373?

What I don't understand is why this was first addressed in Gutenberg and not just directly in core 🤷 Seems like unnecessary duplicate work.

[oandregal]

Doesn't this also partially address https://core.trac.wordpress.org/ticket/47373?

Oh, I wasn't aware of it when I reported in Gutenberg. Thanks for sharing. I see the ticket is 4 years old, so thank you, @ramonjd, for addressing it! :)

What I don't understand is why this was first addressed in Gutenberg and not just directly in core 🤷 Seems like unnecessary duplicate work.

I already commented here, though it's perhaps worth re-sharing:

Gutenberg supports the last two WordPress releases. At the moment, WordPress 6.2 and WordPress 6.3. Even when/if the fix is released as part of WordPress 6.4, Gutenberg still has to support WordPress 6.3. I think it's worth enabling users to see the string in their language faster than 6.4 is available (and before they update).

[audrasjb]

committed in https://core.trac.wordpress.org/changeset/56496