todo: make swyxkit render interactive components

[swyxio]

so technically since swyxkit runs content thru mdsvex, you can write mdsvex inside github issues and then build that out as a svelte component that runs in the browser.

the necessary steps are:

• take output of mdsvex.compile (which is where we currently stop)
• if contains <script>, pass it into svelte.compile
• get the individual js and css pieces out and append them to be injected crudely via @html (as is done today
• but make sure to mount them on a given target

and it should work, barring any cross dependencies.