refactor(push notifications): improve efficiency and readability#103

fulleni merged 4 commits intomainflutter-news-app-full-source-code/flutter-news-app-api-server-full-source-code:mainfrom

perf/parallelize-in-app-notification-creationflutter-news-app-full-source-code/flutter-news-app-api-server-full-source-code:perf/parallelize-in-app-notification-creationCopy head branch name to clipboard