Italian Localization (#3388)
* Italian Localization
New strings translated for v.1.75
* Update messages.po
Changed two expressions following the revision of @marcomaroni
* Update messages.po
Additional changes to text applied following the suggestion of external translators.
* Update messages.po
Deleted extra stop and corrected a gramatical error
* Update messages.po
Added a correction on string 414 which had a grammatical error.
* Update messages.po
String with Labeler updated.
* Update messages.po
Additional changes made to wordings in traduced strings