fix(www): clipboard checkmark fix

[Kinfe123]

On dialog component for share button , there was not a functionality where the user has to see the interactivity of clicking a button and seeing checkmark message for confirmation that the text has been succesfully copied

[vercel[bot]]

@Kinfe123 is attempting to deploy a commit to the shadcn-pro Team on Vercel.

A member of the Team first needs to authorize it.

[Kinfe123]

@shadcn can you check this issue once you get time ?