Font Library: Update font collection json schema

[matiasbenedetto]

What?

Update font collection JSON schema.

Why?

To accommodate the changes added in:

• Font Library: remove font family and font face preview keys from theme.json schema #58395
• Font Collections: update registration function signature and add caching #58363

How?

Updating the schema.

Testing Instructions

• Create a JSON file with this content.
• Open this file in an editor like VS code, you should not see any validation errors. Apart from that, you should have autocomplete properties utility and error highlighting working.

{
    "$schema": "https://raw.githubusercontent.com/WordPress/gutenberg/c637a411be0b6a73d5f73260cc4b83e6e27cb65e/schemas/json/font-collection.json",
    "name": "My Font Collection",
    "slug": "my-font-collection",
    "description": "A collection of my favorite fonts",
    "categories": [
        {
            "name": "sans-serif",
            "slug": "sans-serif"
        }
    ],
    "font_families": [
        {
            "preview": "https://example.com/preview.png",
            "font_family_settings": {
                "fontFamily": "Arial",
                "name": "Arial",
                "slug": "arial"
            },
            "categories": [
                "sans-serif"
            ],
            "font_faces": [
                {
                    "preview": "https://example.com/preview.png",
                    "font_face_settings": {
                        "fontFamily": "Arial",
                        "src": "https://example.com/arial.woff",
                        "fontWeight": "normal",
                        "fontStyle": "normal"
                    }
                }
            ]
        }
    ]
}

[mikachan]

This LGTM 🎉

I created a JSON file with the provided test content and opened the file in VS Code.

• Did not see any validation errors ✅
• Autocomplete works as expected ✅
• Error highlighting works as expected ✅