Handle default

Author: Jack251970

Flow.Launcher/ViewModel/PluginStoreItemViewModel.cs

@@ -82,6 +82,8 @@ private async Task ShowCommandQueryAsync(string action)
                 case "update":
                     await UpdatePluginAsync(_newPlugin, _oldPluginPair.Metadata);
                     break;
+                default:
+                    break;
             }
         }