Adjust IAP UI

lib/ui/app/upgrade_dialog.dart

@@ -228,11 +228,7 @@ class _UpgradeDialogState extends State<UpgradeDialog> {
 
         return ListTile(
           title: Text(productDetails.description),
-          subtitle: Column(
-            crossAxisAlignment: CrossAxisAlignment.start,
-            children: [
-              SizedBox(height: 4),
-              TextButton(
+          trailing: TextButton(
             style: TextButton.styleFrom(
               backgroundColor: Colors.green[800],
               // TODO(darrenaustin): Migrate to new API once it lands in stable: https://github.com/flutter/flutter/issues/105724
@@ -265,9 +261,6 @@ class _UpgradeDialogState extends State<UpgradeDialog> {
                 ? AppLocalization.of(context).activate
                 : productDetails.price),
           ),
-              SizedBox(height: 20),
-            ],
-          ),
         );
       },
     ));