Hide "Go To Target" button when no trigger action parameters are selected

Author: JoyfulShush

src/TSMapEditor/UI/Windows/TriggersWindow.cs

@@ -1950,6 +1950,7 @@ private void LbActionParameters_SelectedIndexChanged(object sender, EventArgs e)
             if (lbActionParameters.SelectedItem == null || editedTrigger == null || lbActions.SelectedItem == null)
             {
                 tbActionParameterValue.Text = string.Empty;
+                btnActionGoToTarget.Disable();
                 return;
             }