feat(compiler-sfc): Hoist leading comment of defineOptions to export default

[rijenkii]

See also: vue-styleguidist/vue-styleguidist#1399, vuejs/language-tools#1894.

This PR allows to document components made in composition-api style:

<script setup lang="ts">
/**
 * Component documentation comment.
 * @version 12.5.7
 * @beta
 */
defineOptions();
</script>

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	85.8 kB	32.6 kB	29.4 kB
vue.global.prod.js	132 kB	49.3 kB	44.3 kB

Usages

Name	Size	Gzip	Brotli
createApp	47.7 kB	18.9 kB	17.2 kB
createSSRApp	50.5 kB	19.9 kB	18.2 kB
defineCustomElement	50.1 kB	19.6 kB	17.9 kB
overall	61.1 kB	23.7 kB	21.6 kB

[rijenkii]

I have left a message in Discord, will duplicate it here as well because as of now I am a bit stumped.

I've looked at netlify-deployed sfc playground: JS is generated as expected, but TS tooltip does not contain the component documentation:
<script>: https://tinyurl.com/486sk8dm
<script setup>: https://tinyurl.com/4tsytkp5

If anyone knows what is going on please chime in, as I have little clue of what I am actually doing.