Add #prefix slot to date picker

[NateTheGreat001]

Clear and concise description of the problem

It would be great if i could pass a prefix to date picker. Prefixes and suffixes on forms allow me to avoid using topside labels and thereby make my forms look a lot cleaner. It works great with normal inputs but sadly not with date pickers

P.S. Thank you for the library, its awesome, i would not know what to do without it

Suggested solution

Add a #prefix slot to date picker

Alternative

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Additional context

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