Move Custom block library to Content

Updated MR based on 🐛 Create a redirect for the new Block types path Fixed

It looks like the last piece of feedback on the MR was around that deprecation message which I've updated to match the other issue that was just committed :) hoping for an RTBC on this now!

The Needs Review Queue Bot → tested this issue. It no longer applies to Drupal core. Therefore, this issue status is now "Needs work".

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Temporary issue with the bot

Sounds like this needs works

We need feedback on whether the empty arm of the upgrade path needs tests. To me this is slightly overkill but others might disagree.

@mstrelan and I already tested locally with the getOption approach and it failed as per the MR comment.

Last bits have been addressed.

Setting to RTBC as per my earlier testing ✨ Move Custom block library to Content Fixed and all feedback has now been addressed.

Updating issue credits, crediting those who provided meaningful reviews that changed the course of the patch, those who were involved in usability testing and review and those who made significant issue summary updates

Did another round of manual testing and another code review, looks good to me.

🎉🎉🎉

Committed d7c4cf1 and pushed to 10.1.x. Thanks!

Confirmed the change record already mentions this.

Updated the draft release notes to reference this and the block-types move.

Nice work everyone

See you in 📌 Rename Custom Block terminology in the admin UI Fixed and 📌 Move block content edit and delete routes under admin/content/block to improve IA for editors and fix breadcrumbs Fixed

Wow! Thanks so much to everybody who put work into this and pushed it through!

Automatically closed - issue fixed for 2 weeks with no activity.

smustgrave → credited legolasbo → .

smustgrave → credited MattA → .

Closed 📌 Improve workflow for creating custom blocks Closed: duplicate moving over credit. Placing here as I don't have ability to add credit to the META.

very bad idea 👎