feat(storybook): ✨ added storybook files to registry and CLI

[lloydrichards]

I had a look into how the CLI works and came up with a solution to have the CLI add the .storybook.tsx files at the same time when using the npx shadcn-ui add command.

This was done by:

1. move stories into the apps/www/registry folder
2. add a new config property for storybook:true to the component.json
3. adding the .stories.tsx to the apps/www/registry/registry.ts file
4. making changes to the apps/www/scripts/build-registry.ts script to remove the style from the pathname on .stories.tsx if the config.storybook is true
5. run the pnpm build to make sure the build-registry script still works

I'm not sure yet how to test this yet apart from making sure none of the CI is failing, but would be important to try this out as a beta release to make sure everything still works

[lloydrichards]

@XavierGeerinck any chance to merge in this and #4 ? would be interesting to get some thoughts on the CLI feature