Not showing warning for empty string translation

[EskelCz]

Thanks for this awesome library. :) Just a super simple question/request. Does it make sense to throw a warning for $t('') that '' was not found in the dictionary? Because I don't think think translating an empty string to something else is very useful. :)

I like both my code and console as clean as possible and this forces me to add a lot of ugly checks for empty strings. Thanks for your consideration.

[cibernox]

I think it makes sense to show a warning for any attempt to translate a key that is not in the dictionary of known keys. At most I'd concede that for this case it could be a different warning. I'd expect that if someone tries to translate an empty string that's probably an unintender bug/typo.