Use latest Terminal.Gui

ReactiveExample/ReactiveExample.csproj

@@ -6,7 +6,7 @@
     <ItemGroup>
         <PackageReference Include="Pharmacist.MsBuild" Version="1.8.1" PrivateAssets="all" />
         <PackageReference Include="Pharmacist.Common" Version="1.8.1" />
-        <PackageReference Include="Terminal.Gui" Version="0.90.3" />
+        <PackageReference Include="Terminal.Gui" Version="1.0.0-pre.1" />
         <PackageReference Include="ReactiveUI.Fody" Version="11.5.35" />
         <PackageReference Include="ReactiveUI" Version="11.5.35" />
     </ItemGroup>