Add useRenderAppenderWithLimit hook

[ncoetzer]

Description of the Change

This pull request introduces a new custom React hook, useRenderAppenderWithLimit, which allows developers to easily enforce a maximum number of inner blocks in WordPress blocks. It also demonstrates its usage by adding an example block and updates the block components package to export the new hook.

New Hook Implementation and Documentation

• Added useRenderAppenderWithLimit hook in hooks/use-render-appender-with-limit/index.ts, which conditionally returns a block appender based on the number of inner blocks and a specified limit.
• Provided documentation for the hook in hooks/use-render-appender-with-limit/readme.md, including usage instructions and an example.

Example Block Demonstrating the Hook

• Created a new block, example/inner-block-limit, with configuration in example/src/blocks/inner-blocks-limit/block.json to showcase usage of the hook.
• Implemented the block edit component in example/src/blocks/inner-blocks-limit/edit.tsx, utilizing the hook to limit inner blocks to four.
• Registered the block in example/src/blocks/inner-blocks-limit/index.tsx, wiring up the edit and save functionality.

Package Export Update

• Exported useRenderAppenderWithLimit from the main hooks index for easier import throughout the codebase.

Closes #393

How to test the Change

Changelog Entry

Added - New Hook

Credits

Props @ncoetzer @fabiankaegy

Checklist:

• I agree to follow this project's Code of Conduct.
• I have updated the documentation accordingly.
• I have added Critical Flows, Test Cases, and/or End-to-End Tests to cover my change.
• All new and existing tests pass.

[cypress]

10up Block Components    Run #1057

Run Properties:   Passed #1057  •  6f752fca48: Enhance documentation for useRenderAppenderWithLimit hook by adding detailed par...

Project	10up Block Components
Branch Review	feature/hook-render-appender-with-limit
Run status	Passed #1057
Run duration	05m 07s
Commit	6f752fca48: Enhance documentation for useRenderAppenderWithLimit hook by adding detailed par...
Committer	Neil Coetzer
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Test results
Failures	0
Flaky	0
Pending	0
Skipped	0
Passing	35
View all changes introduced in this branch ↗︎

[fabiankaegy]

This is looking good :)