Research storybook font imports

[Diogomartf]

Currently we are importing from @font-source the IBM Plex Mono font on frontend package and on the UI package. It might be better to only import it in one place.

The idea is to research this possibility and apply it to our codebase.

Some ideas from a conversation with Federico:

• I think there's a way to import fonts in Storybook directly so that the import is not there in the bundled library, but storybook loads the font
• Take a look to decorators in Storybook there's one in .storybook/preview.js, I think we need to add font loadings somewhere there.

[luzzif]

Lookng at the code again, I'm pretty sure this is already done in the CarrotUIProvider, which wraps all of Storybook previews. The IBM plex mono font is available through fontsource, while we might need to add an explicit import for Helvetica.

[luzzif]

Done