Add note about TypeScript requiring types for namespaced attributes

[titoBouzout]

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Someone made a note on discord that for example prop:scrollTop gives a type error, and asked if that was a bug. Related docs page https://docs.solidjs.com/reference/jsx-attributes/prop

I understood the expectation, given that there is no indication that the typings for such a prop must be provided by the user. I understand we do not want to include types on each page and have a special page for types instead. So I'm including a note on each special namespaced attributes page indicating that the types must be provided and linking to the examples given in the TypeScript page

I'm not that sure about the format of the note as in "Note: text", or could be a callout but maybe It's too much, maybe we can bold the "Note" part?

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[atilafassina]

Small nits about using the built components for highlighting/callout

[titoBouzout]

Thanks @atilafassina, changes made, using a Callout for the "Note:". Should be ready for review again