[PB-5935] feature/Create sharing extension UI#380

CandelR merged 2 commits intofeature/PB-5318-share-extensioninternxt/drive-mobile:feature/PB-5318-share-extensionfrom

feature/PB-5935-create-main-sharing-extension-interfaceinternxt/drive-mobile:feature/PB-5935-create-main-sharing-extension-interfaceCopy head branch name to clipboard