Only call LoadPreviewImage when using default preview

Author: VictoriousRaptor

Flow.Launcher/MainWindow.xaml

@@ -481,7 +481,7 @@
                             DataContext="{Binding SelectedItem, ElementName=ResultListBox}"
                             Style="{DynamicResource PreviewBorderStyle}" 
                             Visibility="{Binding ShowCustomizedPreview}">
-                            <ContentControl Content="{Binding Result.PreviewPanel.Value}" />
+                            <ContentControl Content="{Binding CustomPreviewPanel}" />
                         </Border>
                     </Grid>
                 </Grid>

Flow.Launcher/ViewModel/ResultViewModel.cs

@@ -216,10 +216,13 @@ private async Task LoadPreviewImageAsync()
 
         public void LoadPreviewImage()
         {
-            if (!PreviewImageLoaded && ShowIcon == Visibility.Visible)
+            if (ShowDefaultPreview == Visibility.Visible)
             {
-                PreviewImageLoaded = true;
-                _ = LoadPreviewImageAsync();
+                if (!PreviewImageLoaded && ShowIcon == Visibility.Visible)
+                {
+                    PreviewImageLoaded = true;
+                    _ = LoadPreviewImageAsync();
+                }
             }
         }