Fix attachment blur view missing corner radius

Tusker/Screens/Compose/ComposeViewController.swift

@@ -405,6 +405,7 @@ class ComposeViewController: UIViewController {
             guard let visibility = visibility else { return }
             self.visibility = visibility
         }
+        alertController.popoverPresentationController?.barButtonItem = visibilityBarButtonItem
         present(alertController, animated: true)
     }
     

Tusker/Views/Attachments/AttachmentsContainerView.swift

@@ -37,6 +37,8 @@ class AttachmentsContainerView: UIView {
         super.awakeFromNib()
         
         self.isUserInteractionEnabled = true
+        self.layer.cornerRadius = 5
+        self.layer.masksToBounds = true
         
         createBlurView()
         createHideButton()