Integrate local ad polymorphic collection into teh data route#55

fulleni merged 9 commits intomainflutter-news-app-full-source-code/flutter-news-app-api-server-full-source-code:mainfrom

Integrate-LocalAd-Polymorphic-Collection-into-teh-data-routeflutter-news-app-full-source-code/flutter-news-app-api-server-full-source-code:Integrate-LocalAd-Polymorphic-Collection-into-teh-data-routeCopy head branch name to clipboard