Don't include Eto.Platform.Gtk on windows

Author: jvyden

Refresher/Refresher.csproj

@@ -18,7 +18,7 @@
       <PackageReference Include="CommandLineParser" Version="2.9.1" />
       <PackageReference Include="ELFSharp" Version="2.17.2" />
       <PackageReference Include="Eto.Forms" Version="2.7.5" />
-      <PackageReference Include="Eto.Platform.Gtk" Version="2.7.5" />
+      <PackageReference Condition="'$(TargetFramework)' != 'net7.0-windows'" Include="Eto.Platform.Gtk" Version="2.7.5" />
       <PackageReference Condition="'$(TargetFramework)' == 'net7.0-windows'" Include="Eto.Platform.Wpf" Version="2.7.5" />
       <EmbeddedResource Include="Resources\refresher.ico" LogicalName="refresher.ico" />
       <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />