DeliveryAdminWindow: Allow date and time to be edited

Elwig/Windows/AdministrationWindow.cs

@@ -482,6 +482,14 @@ namespace Elwig.Windows {
             InputLostFocus((TextBox)sender, Validator.CheckDate);
         }
 
+        protected void TimeInput_TextChanged(object sender, RoutedEventArgs evt) {
+            InputTextChanged((TextBox)sender, Validator.CheckTime);
+        }
+
+        protected void TimeInput_LostFocus(object sender, RoutedEventArgs evt) {
+            InputLostFocus((TextBox)sender, Validator.CheckTime);
+        }
+
         protected void PlzInput_TextChanged(object sender, RoutedEventArgs evt) {
             var plz = (TextBox)sender;
             InputTextChanged(plz, Validator.CheckPlz);