Add back field to avoid duplicate plugin control loading

Author: taooceros

Flow.Launcher/SettingWindow.xaml

@@ -774,7 +774,7 @@
                                                         <Style TargetType="{x:Type Border}">
                                                             <Setter Property="Visibility" Value="Visible" />
                                                             <Style.Triggers>
-                                                                <DataTrigger Binding="{Binding ElementName=SettingControl, Path=ActualHeight}" Value="0">
+                                                                <DataTrigger Binding="{Binding ElementName=PluginSettingControl, Path=ActualHeight}" Value="0">
                                                                     <Setter Property="Visibility" Value="Collapsed" />
                                                                     <Setter Property="BorderThickness" Value="0" />
                                                                     <Setter Property="Padding" Value="0" />
@@ -784,7 +784,7 @@
                                                     </Border.Style>
                                                 </Border>
                                                 <!--#endregion-->
-                                                <ContentControl x:Name="SettingControl" 
+                                                <ContentControl x:Name="PluginSettingControl" 
                                                         Content="{Binding SettingControl}"
                                                         Padding="1" Margin="0" VerticalAlignment="Stretch"
                                                         MaxWidth="750" MaxHeight="550">

Flow.Launcher/ViewModel/PluginViewModel.cs

@@ -31,7 +31,8 @@ public bool PluginState
             set => PluginPair.Metadata.Disabled = !value;
         }
 
-        public Control SettingControl => PluginPair.Plugin is not ISettingProvider settingProvider ? new Control() : settingProvider.CreateSettingPanel();
+        private Control _settingControl;
+        public Control SettingControl => _settingControl ??= PluginPair.Plugin is not ISettingProvider settingProvider ? new Control() : settingProvider.CreateSettingPanel();
 
         public Visibility ActionKeywordsVisibility => PluginPair.Metadata.ActionKeywords.Count == 1 ? Visibility.Visible : Visibility.Collapsed;
         public string InitilizaTime => PluginPair.Metadata.InitTime + "ms";