App: Rename FocusPaymentVariantsWindow to FocusPaymentVariants

Elwig/App.xaml.cs

@@ -241,7 +241,7 @@ namespace Elwig {
             return w;
         }
 
-        public static PaymentVariantsWindow FocusPaymentVariantsWindow(int year) {
+        public static PaymentVariantsWindow FocusPaymentVariants(int year) {
             return FocusWindow<PaymentVariantsWindow>(() => new(year), w => w.Year == year);
         }
 

Elwig/Windows/SeasonFinishWindow.xaml.cs

@@ -119,7 +119,7 @@ namespace Elwig.Windows {
         private void PaymentButton_Click(object sender, RoutedEventArgs evt) {
             if (SeasonInput.Value is not int year)
                 return;
-            App.FocusPaymentVariantsWindow(year);
+            App.FocusPaymentVariants(year);
         }
     }
 }