[Feature Request] Add data attributes to markdown components

[kyh]

Similar to the issue pointed out in #13, would love to add data-* attributes to the markdown components so that styles can be overwritten/styled outside of tailwind (without having to overwrite the default components)

Happy to help contribute

[haydenbleasel]

Done! We now have streamdown data attributes for every component e.g. data-streamdown="inline-code". This will come out in the next release 👍