v4, beta4 (#19)

- Update with header/attribute changes between alpha8 and beta4
- Add support for htmax script, attributes, headers, and extension config

Reviewed-on: #19

src/Tests/Tests.fsproj

@@ -8,6 +8,7 @@
     <Compile Include="Common.fs" />
     <Compile Include="Htmx.fs" />
     <Compile Include="ViewEngine.fs" />
+    <Compile Include="ViewEngineMax.fs" />
     <Compile Include="Program.fs" />
   </ItemGroup>
 
@@ -18,9 +19,9 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Expecto" Version="10.2.1" />
-    <PackageReference Include="NSubstitute" Version="5.1.0" />
-    <PackageReference Update="FSharp.Core" Version="8.0.300" />
+    <PackageReference Include="Expecto" />
+    <PackageReference Include="NSubstitute" />
+    <PackageReference Include="FSharp.Core" />
   </ItemGroup>
 
 </Project>