macOS: fix window position when dragging split into a new window

macos/Sources/Features/Terminal/TerminalController.swift

@@ -318,8 +318,9 @@ class TerminalController: BaseTerminalController, TabGroupCloseCoordinator.Contr
 
         // Calculate the target frame based on the tree's view bounds
         let treeSize: CGSize? = tree.root?.viewBounds()
-
+       
         DispatchQueue.main.async {
+            c.showWindow(self)
             if let window = c.window {
                 // If we have a tree size, resize the window's content to match
                 if let treeSize, treeSize.width > 0, treeSize.height > 0 {
@@ -337,8 +338,6 @@ class TerminalController: BaseTerminalController, TabGroupCloseCoordinator.Contr
                     }
                 }
             }
-
-            c.showWindow(self)
         }
 
         // Setup our undo