Added Italian to the list of supported languages (#593)

src/lang/en/framework/Internationalization.json

@@ -3,7 +3,7 @@
   "headerText": "Vuetify supports language internationalization of its components. When installing Vuetify you can specify available locales and the currently active locale with the `lang` option. See the Getting started section. ",
   "gettingStarted": "Getting started",
   "gettingStartedText": "To set the available locales or the current locale, supply the `lang` option when installing Vuetify. The provided `locales` property will be merged with the already existing locales. You can change the locale during runtime through the `$vuetify` object on the Vue instance.",
-  "availableLocalesText": "Currently Vuetify provides translations in the following languages: English (**en**), Catalan (**ca**), traditional Chinese (**zh-Hant**), simpified Chinese (**zh-Hans**), Dutch (**nl**), Farsi (**fa**), French (**fr**), German (**de**), Greek (**gr**), Polish (**pl**), Portuguese (**pt**), Russian (**ru**), Serbian cyrilic (**sr-Cyrl**) and Ukrainian (**uk**).",
+  "availableLocalesText": "Currently Vuetify provides translations in the following languages: English (**en**), Catalan (**ca**), traditional Chinese (**zh-Hant**), simpified Chinese (**zh-Hans**), Dutch (**nl**), Farsi (**fa**), French (**fr**), German (**de**), Greek (**gr**), Italian (**it**), Polish (**pl**), Portuguese (**pt**), Russian (**ru**), Serbian cyrilic (**sr-Cyrl**) and Ukrainian (**uk**).",
   "createTranslation": "Create translation",
   "createTranslationText": "To create your own translation, use the code below or copy and rename the file `vuetify/src/locale/en.ts` to your project and make your changes.",
   "customComponents": "Custom components",