fix: implict children tweaks

[dummdidumm]

• ignore comments when determining whether or not to add an implicit children prop Svelte 5: Components think children prop is being used when commented code is inside their tags #2263
• do static analysis of the destructuring to see whether or not children is destructured from $props(), and if not, add the implicit children prop if there's a slot. This results in less confusing type errors when transforming to runes mode and using a slot