Docs: Create a section about Block Hooks in the Block Editor Handbook

[juanmaguitar]

A section about Block Hooks could be added to the Block API Reference to help discover Block Hooks docs.

Current info about Block Hooks in the Block Editor Handbook is available at:

• Reference Guides > Block API Reference > Registration # blockHooks (optional)
• Reference Guides > Block API Reference > Metadata in block.json # Block Hooks

Also the Exploring the Block Hooks API in WordPress 6.5 post on the Developer Blog would be a great reference for this introduction-to-this-feature page.

cc: @ndiego @jonathanbossenger @ockham

[gziolo]

There were also two dev notes published that could act as a starting point:

• Introducing Block Hooks for dynamic blocks
• Updates to Block Hooks in 6.5

[gziolo]

Some existing references that can be used as a template:

• Block Context
• Block Metadata
• Block Variations