Bump actions/download-artifact from 4 to 6 (#8225)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](https://github.com/actions/download-artifact/compare/v4...v6)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/build-linux.yml

@@ -116,7 +116,7 @@ jobs:
         fetch-depth: '0'
 
     - name: Restore build artifacts
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v6
       with:
         name: v2rayN-linux
         path: ${{ github.workspace }}/v2rayN/Release

v2rayN/v2rayN.Desktop/Views/MainWindow.axaml.cs

@@ -168,7 +168,7 @@ public partial class MainWindow : WindowBase<MainWindowViewModel>
         }
         menuAddServerViaScan.IsVisible = false;
 
-        if (_config.UiItem.AutoHideStartup)
+        if (_config.UiItem.AutoHideStartup && Utils.IsWindows())
         {
             this.WindowState = WindowState.Minimized;
         }
@@ -402,9 +402,9 @@ public partial class MainWindow : WindowBase<MainWindowViewModel>
     public void ShowHideWindow(bool? blShow)
     {
         var bl = blShow ??
-                    Utils.IsLinux()
+                    (Utils.IsLinux()
                     ? (!_config.UiItem.ShowInTaskbar ^ (WindowState == WindowState.Minimized))
-                    : !_config.UiItem.ShowInTaskbar;
+                    : !_config.UiItem.ShowInTaskbar);
         if (bl)
         {
             this.Show();