Fix demo mode black screen no content#75

fulleni merged 2 commits intomainflutter-news-app-full-source-code/flutter-news-app-mobile-client-full-source-code:mainfrom

fix-demo-mode-black-screen-no-contentflutter-news-app-full-source-code/flutter-news-app-mobile-client-full-source-code:fix-demo-mode-black-screen-no-contentCopy head branch name to clipboard