Adjust paywall close button position.

Move the close button slightly lower and further left to better align with the current paywall spacing and visual balance.

Made-with: Cursor

classroom_app/ViewController.swift

@@ -2831,8 +2831,8 @@ private extension ViewController {
         footer.widthAnchor.constraint(equalTo: contentStack.widthAnchor).isActive = true
 
         NSLayoutConstraint.activate([
-            closeButton.topAnchor.constraint(equalTo: panel.topAnchor, constant: 24),
-            closeButton.trailingAnchor.constraint(equalTo: panel.trailingAnchor, constant: -24),
+            closeButton.topAnchor.constraint(equalTo: panel.topAnchor, constant: 30),
+            closeButton.trailingAnchor.constraint(equalTo: panel.trailingAnchor, constant: -30),
             contentStack.centerXAnchor.constraint(equalTo: panel.centerXAnchor),
             contentStack.widthAnchor.constraint(equalToConstant: paywallLayoutWidth),
             contentStack.topAnchor.constraint(equalTo: panel.topAnchor, constant: 80),