I installed Alfresco Content Application, but I could not do full localization. In the horizontal menu: My Libraries-> Sites-> My Name Lib ->documentLibrary. I can not localization word "documentLibrary". I can not find key word "documentLibrary" in i18n and *.json files. How can I localization word "documentLibrary" ?
That name is not localized anywhere - the name documentLibrary actually is the proper name of that folder as stored in the DB. You could change the cm:name property of this folder, but this would break Share functionality which relies on the naming of that folder. So, effectively, this folder name just has to stay the way it is.