feat: add story for @nuxt/fonts module

[hacknug]

🔗 Linked issue

#820

Supersedes #921 because I'm a moron and made my changes to main on a auto-deleted codespace 😅

📚 Description

This PR adds a NuxtFonts component and a story to check if the @nuxt/fonts module is working correctly inside Storybook. At the moment, IT DOES NOT.

It also adds a /modules/fonts route to test the module is working correctly inside the app which IT DOES.

[netlify]

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🔨 Latest commit	bbc9f2c

[hacknug]

@tobiasdiez everything seems to be working ok on my end (both with nuxt and storybook dev).

Not sure why Showcase doesn't show the fonts on the only link I can see. Maybe fonts aren't being deployed as part of storybook standalone?

Solution only works for the default path: https://fonts.nuxt.com/get-started/configuration#assets

Should we add a mention in the docs? Make it configurable? Try to re-use the user provided config for the fonts module?

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EDIT: Sorry it took me a while to get to this, I've been busy and I finally managed to make some time to look into this solution I had in my head for a while haha