AI Inline Extensions: Support custom behavior

[renatoagds]

Related with #37590

Proposed changes:

• Support a custom behavior passing through a function.
• Export actions through context if isn't a children block.
• Mark list-item as childrenBlock.

Other information:

• Have you written new tests for your changes, if applicable?
• Have you checked the E2E test CI results, and verified that your changes do not break them?
• Have you tested your changes on WordPress.com, if applicable (if so, you'll see a generated comment below with a script to run)?

Jetpack product discussion

N/A

Does this pull request change what data or activity we track or use?

N/A

Testing instructions:

• Go to some block class handler (ex. paragraph).
• Add a method to handle the behavior (ex. handleBehavior).
• Expose it on constructor after super call: this.behavior = this.handleBehavior.
• You should be able to log the parameters (with context).
• If you do the same on list-item you need to receive the parent context (list).

[github-actions]

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[github-actions]

Are you an Automattician? Please test your changes on all WordPress.com environments to help mitigate accidental explosions.

• To test on WoA, go to the Plugins menu on a WordPress.com Simple site. Click on the "Upload" button and follow the upgrade flow to be able to upload, install, and activate the Jetpack Beta plugin. Once the plugin is active, go to Jetpack > Jetpack Beta, select your plugin, and enable the add/ai-inline-extensions-custom-behavior branch.

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[lhkowalski]

Code makes sense is working as described:

• I can't see the compiler errors mentioned by Douglas, so I think you solved the issues
• I was able to add custom behavior to the paragraph and get the context on a click
• I was able to add custom behavior to the list item and get the context of it's parent on a click

Nice addition!