Function: Registers patterns from Pattern Directory provided by a theme’s `theme.json` file.

Function: Register any patterns that the active theme may provide under its `./patterns/` directory. Each pattern is defined as a PHP file and defines its metadata using plugin-style headers. The minimum required definition is:

Function: Register `Featured` (category) patterns from wordpress.org/patterns.

Function: Register Core’s official patterns from wordpress.org/patterns.

Function: Registers the core block patterns and categories.