Improve connection between theme and pattern directories

[annezazu]

Right now, when viewing block themes, the patterns within the theme are visible. However, the opposite isn't true when you're browsing the pattern directory. This issue seeks to propose that we better connect these experiences to create a more cohesive experience, lay the ground work for more granular theme switching, and improve the discoverability of the work of theme authors.

Tied to this, it means there's a potential for when someone is submitting a block theme, that they could automatically include patterns in the pattern directory that are tied to what they are submitting.

cc @WordPress/block-themers for thoughts here!

[MaggieCabrera]

+1 to make it easier to submit theme patterns to the directory!

[colorful-tones]

I imagine we're considering adding in some meta information for pattern registration possibly in the pattern's header, e.g.

<?php
/**
* Title: A Pattern Title
* Slug: namespace/slug
* Description: A human-friendly description.
* Viewport Width: 1024
* Categories: comma, separated, values
* Keywords: comma, separated, values
* Block Types: comma, separated, values
* Inserter: yes|no
* Theme: twentytwentythree            <---- new meta for pattern
*/

I love this and think it would be a great addition. I could see it being prioritized over some other pattern enhancements.

[mikachan]

Another +1 for this idea! Especially this part:

lay the ground work for more granular theme switching

I also like the idea of automatically including a theme's patterns in the pattern directory. Awesome!