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### What?
### Why?
### How?
Fixes #
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### What?
This PR introduces support for the `admin.group` property in block
configs. This property enables blocks to be grouped under a common,
potentially localized, label in the block drawer component. This makes
it easier to sort through large collections of blocks. Previously, all
blocks would be in one common layout.
This PR also encompasses documentation changes and e2e tests to check
for the rendering of group labels.
### Why?
To make it easier to organize many blocks in block fields.
### How?
By introducing a new `admin.group` property in block configs and
assembling them in the blocks drawer component.
Before:
After:
Demo:
[Editing---Block-Field---Payload-groups-demo.webm](https://github.com/user-attachments/assets/2b351dc1-0d14-4a5b-ae71-bcd31fbb23df)
Addresses #5609
22f61ad79e