Linux: Fix file picker not launching from disabling core dumps

Core dumps are disabled by default on Linux, but this prevents access to the file picker due to security hardening. To work around this, core dumps are selectively enabled and disabled around the file picker tasks.

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

@@ -10,6 +10,7 @@ using Ryujinx.Ava.UI.Helpers;
 using Ryujinx.Ava.UI.ViewModels;
 using Ryujinx.Ava.UI.Windows;
 using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Utilities;
 using Ryujinx.HLE.HOS;
 using Ryujinx.UI.App.Common;
 using Ryujinx.UI.Common.Helper;
@@ -391,6 +392,8 @@ namespace Ryujinx.Ava.UI.Controls
 
         public async void ExtractApplicationLogo_Click(object sender, RoutedEventArgs args)
         {
+            OsUtils.SetCoreDumpable(true);
+
             var viewModel = (sender as MenuItem)?.DataContext as MainWindowViewModel;
 
             if (viewModel?.SelectedApplication is { } selectedApp)
@@ -420,6 +423,11 @@ namespace Ryujinx.Ava.UI.Controls
                     fileStream.Write(selectedApp.Icon);
                 }
             }
+
+            if (!Program.CoreDumpArg)
+            {
+                OsUtils.SetCoreDumpable(false);
+            }
         }
 
         public void CreateApplicationShortcut_Click(object sender, RoutedEventArgs args)