Block Patterns: "Featured" category & patterns missing from inserter

[ryelle]

In Gutenberg 11.8, the block patterns were updated to also show a "Featured" category, which loads the ​featured patterns from the Pattern Directory. See ​the original gutenberg PR here.

It seems like this was not ported back to core, so the behavior in Gutenberg & core is different.

[hellofromTonya]

Test Report: Can reproduce ("Before"). Applying the patch ("After"), featured patterns now appear at the end. Works ✅

[hellofromTonya]

Test Report

Env:

• OS: macOS Big Sur
• Plugins: none activated
• Theme: TT2
• WordPress: trunk
• Localhost: wp-env
• Browser: Chrome and Edge

Steps

1. Navigate to Pages
2. Add a new page
3. Click on the + icon to toggle the block inserter open
4. Click on the "Patterns" tab
5. Either scroll the featured in the left sidebar or click on the "Explore" button to open the Patterns modal.

Expected behavior: Featured patterns should be included.

Results

• Able to reproduce reported issue
• Applying the 54623.diff​ patch resolves the issue ✅

[hellofromTonya]

Marking for commit. Self-assigned to prepare commit.

Note: The hardcoded 26 is the featured category ID from the remote pattern directory, not a cat in Core. Took me a minute to realize why this hardcoded number is used.

[ryelle]

Note: The hardcoded 26 is the featured category ID from the remote pattern directory, not a cat in Core. Took me a minute to realize why this hardcoded number is used.

Yeah, that mirrors the behavior in the _load_remote_block_patterns where a similar hardcoded value is set (the core keyword). Hopefully in 6.0 we'll be able to phase that out in favor of loading all the patterns from w.org/patterns :)

Thanks for taking care of the commit!

[hellofromTonya]

In 52377:

Editor: Add "Featured" patterns from pattern directory to Patterns in block inserter.

This commit backports the remote "Featured" category request and loads it into the Featured Patterns in the block inserter.

Props ryelle.
Fixes #54623.