Remove dependency on sveltedoc-parser

[benmccann]

Is your feature request related to a problem? Please describe.

I has nearly 100 dependencies (https://npmgraph.js.org/?q=sveltedoc-parser) and the last commit was 4 years ago (https://github.com/KatChaotic/sveltedoc-parser)

Describe the solution you'd like

It looks like our usage of sveltedoc-parser has really been reduced a lot. Going back through some history it seems like perhaps we now use it only to detect jsdoc comments on slots (#28492 (comment)) as demonstrated in KatChaotic/sveltedoc-parser#61. I have to say that I've never really seen this syntax get used in the wild and it's not something in the official Svelte docs as far as I know so it must be fairly rare. I think we could basically just drop support for it and very few people would miss it - especially with Svelte 5 replacing slots with snippets

Describe alternatives you've considered

Fork it or try to find some alternative

Are you able to assist to bring the feature to reality?

no

Additional context

No response

[benmccann]

oops. I meant to create this as an issue