UI: Only show DLC RomFS button under Extract Data when DLCs are available.

Also convert the constructor of DlcSelectViewModel to expect a normal title id and not one already converted to the base ID.

src/Ryujinx/UI/Controls/ApplicationContextMenu.axaml

@@ -117,6 +117,7 @@
             Header="{ext:Locale GameListContextMenuExtractDataRomFS}"
             ToolTip.Tip="{ext:Locale GameListContextMenuExtractDataRomFSToolTip}" />
         <MenuItem
+            IsVisible="{Binding HasDlc}"
             Click="ExtractAocRomFs_Click"
             Header="{ext:Locale GameListContextMenuExtractDataAocRomFS}"
             ToolTip.Tip="{ext:Locale GameListContextMenuExtractDataAocRomFSToolTip}" />

src/Ryujinx/UI/Controls/ApplicationContextMenu.axaml.cs

@@ -334,7 +334,7 @@ namespace Ryujinx.Ava.UI.Controls
             if (sender is not MenuItem { DataContext: MainWindowViewModel { SelectedApplication: not null } viewModel })
                 return;
 
-            DownloadableContentModel selectedDlc = await DlcSelectView.Show(viewModel.SelectedApplication.IdBase, viewModel.ApplicationLibrary);
+            DownloadableContentModel selectedDlc = await DlcSelectView.Show(viewModel.SelectedApplication.Id, viewModel.ApplicationLibrary);
             
             if (selectedDlc is not null)
             {