fix tabman bug when tabbar is visible

Classes/Repository/RepositoryOverviewViewController.swift

@@ -40,6 +40,10 @@ ListAdapterDataSource {
 
         feed.viewDidLoad()
         feed.adapter.dataSource = self
+
+        // set the frame in -viewDidLoad is required when working with TabMan
+        feed.collectionView.frame = view.bounds
+        
         if #available(iOS 11.0, *) {
             feed.collectionView.contentInsetAdjustmentBehavior = .never
         }