Fix docfx namespace (#12048)

* Temp hack for building docs on pr

* Fix namespace

* revert hack to build docs on pr

src/ApiDocs/umbracotemplate/partials/class.tmpl.partial

@@ -15,8 +15,8 @@
     <div class="level{{item.level}}"><span class="xref">{{item.name.0.value}}</span></div>
 </div>
 {{/inheritance.0}}
-<h6><strong>{{__global.namespace}}</strong>:{{namespace}}</h6>
-<h6><strong>{{__global.assembly}}</strong>:{{assemblies.0}}.dll</h6>
+<h6><strong>{{__global.namespace}}</strong>: {{{namespace.specName.0.value}}}</h6>
+<h6><strong>{{__global.assembly}}</strong>: {{assemblies.0}}.dll</h6>
 <h5 id="{{id}}_syntax">{{__global.syntax}}</h5>
 <div class="codewrapper">
   <pre><code class="lang-{{_lang}} hljs">{{syntax.content.0.value}}</code></pre>