Merge pull request #1933 from michalsrutek/bugfix/ipad-crash-present-inappbrowser

💥 Fix iPad crash due to missing `sourceView`

flutter_inappwebview_ios/ios/Classes/InAppBrowser/InAppBrowserManager.swift

@@ -115,6 +115,14 @@ public class InAppBrowserManager: ChannelDelegate {
             return
         }
 
+        if let popover = navController.popoverPresentationController {
+            let sourceView = visibleViewController.view ?? UIView()
+
+            popover.sourceRect = CGRect(x: sourceView.bounds.midX, y: sourceView.bounds.midY, width: 0, height: 0)
+            popover.permittedArrowDirections = []
+            popover.sourceView = sourceView
+        }
+
         visibleViewController.present(navController, animated: animated)
     }