feat: change interfaces to types for quickinfo

[sprutton1]

Same as described here, the Typescript system does not extract deep information from interfaces, so if we want the details on the hover/hotkey, we need them to be types.

I have no idea what implications this might have elsewhere, so insight there would be good. Everything seems good in my tests still.

[paulocsanz]

Have you checked if this causes a lint breakage for any function? Because variable definition works differently with interfaces and types.

If not, I'm cool with it.

[sprutton1]

Have you checked if this causes a lint breakage for any function? Because variable definition works differently with interfaces and types.

If not, I'm cool with it.

I don't see any new linter errors on the existing functions I checked. I haven't checked all of them, but I imagine we'll catch them as @stack72 goes through and fixes them up.

[sprutton1]

bors r+

[si-bors-ng]

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