Added Custom Path case when saving screenshots (#5086)

src/Ryujinx.Ava/AppHost.cs

@@ -270,7 +270,7 @@ namespace Ryujinx.Ava
 
                         string directory = AppDataManager.Mode switch
                         {
-                            AppDataManager.LaunchMode.Portable => Path.Combine(AppDataManager.BaseDirPath, "screenshots"),
+                            AppDataManager.LaunchMode.Portable or AppDataManager.LaunchMode.Custom => Path.Combine(AppDataManager.BaseDirPath, "screenshots"),
                             _                                  => Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "Ryujinx")
                         };
 

src/Ryujinx/Ui/RendererWidgetBase.cs

@@ -381,7 +381,7 @@ namespace Ryujinx.Ui
                         string filename    = $"ryujinx_capture_{currentTime.Year}-{currentTime.Month:D2}-{currentTime.Day:D2}_{currentTime.Hour:D2}-{currentTime.Minute:D2}-{currentTime.Second:D2}.png";
                         string directory   = AppDataManager.Mode switch
                         {
-                            AppDataManager.LaunchMode.Portable => System.IO.Path.Combine(AppDataManager.BaseDirPath, "screenshots"),
+                            AppDataManager.LaunchMode.Portable or AppDataManager.LaunchMode.Custom => System.IO.Path.Combine(AppDataManager.BaseDirPath, "screenshots"),
                             _ => System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "Ryujinx")
                         };