Feature add device preview for demo mode#41

fulleni merged 5 commits intomainflutter-news-app-full-source-code/flutter-news-app-mobile-client-full-source-code:mainfrom

feature_add_device_preview_for_demo_modeflutter-news-app-full-source-code/flutter-news-app-mobile-client-full-source-code:feature_add_device_preview_for_demo_modeCopy head branch name to clipboard