Export `Badge` component for custom Theme

[peterroe]

Is your feature request related to a problem? Please describe.

I want to use Badge component in my custom theme. And the Badge component not exportd by vitepress/theme

So I can do this only:

import Theme from 'vitepress/theme'

export default {
	...Theme,
	enhanceApp(ctx) {
	 	Theme.enhanceApp(ctx)
		// Custom content
	}
}

Describe the solution you'd like

So I' d like to import Badge from vitepress/theme directly

import { Badge } from 'vitepress/theme'

export default {
	...Theme,
	enhanceApp(ctx) {
	 	ctx.app.component('Badge', VPBadge);
		// Custom content
	}
}

Describe alternatives you've considered

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the docs.
• Read the Contributing Guidelines.
• Check that there isn't already an issue that asks for the same feature to avoid creating a duplicate.

[brc-dd]

PR is welcome. This needs to be edited - https://github.com/vuejs/vitepress/blob/main/src/client/theme-default/without-fonts.ts