[LiveComponent] Add better error message when hydrating dates

[1ed]

Q	A
Bug fix?	no
New feature?	yes
Issues	-
License	MIT

Instead of

Return value must be of type ?object, bool returned"

return a proper error message

The model path "createdAt" was sent invalid date data "0" or in an invalid format. Make sure it's a valid date and it matches the expected format "Y. m. d.".

Not sure if it's a bugfix or feature. Maybe the wording can be tweaked.

[weaverryan]

Love this! Thank you Gábor!