Interactivity API: Add supports.interactivity to the Query block

[luisherranz]

What?

Adds supports.interactivity to the Query block.

Why?

Because without it, the new Server Directive Processing doesn't process it.

How?

By adding the property to the block.json.

Testing Instructions

• Open the Site Editor
• Add a Query block
• Inside the Query block, add an HTML block
• Put this code

  <div
    data-wp-interactive='{ "namespace": "test" }'
    data-wp-context='{ "text": "testing server directive processing" }'
  >
    <span data-wp-text="context.text"></span>
  </div>

• Save and inspect the HTML of the site
  • Don't inspect using the Chrome DevTools!!
  • Use Right-click, "View Page Source" in Chrome
• In the rendered HTML, search for testing server directive processing
• If the server directive processing worked, the text should also be inside the <span> tag:

  <div
    data-wp-interactive='{ "namespace": "test" }'
    data-wp-context='{ "text": "testing server directive processing" }'
  >
    <span data-wp-text="context.text">testing server directive processing</span>
  </div>

[cbravobernal]

LGTM