chore: Fix link generation logic in help-center (#5470)

app/views/public/api/v1/portals/_category-block.html.erb

@@ -15,7 +15,7 @@
     </div>
     <% else %>
       <% category.articles.published.take(5).each do |article| %>
-      <div class="flex justify-between content-center min:h-8 my-1">
+      <div class="flex justify-between content-center my-1">
         <a
           class="text-slate-800 hover:underline leading-8"
           href="/hc/<%= portal.slug %>/<%= category.locale %>/<%= category.slug %>/<%= article.id %>"

app/views/public/api/v1/portals/_header.html.erb

@@ -17,6 +17,7 @@
       </div>
       <% end %>
     </div>
+    <% if @portal.config["allowed_locales"].length > 1 %>
     <div class="flex items-center">
       <div class="inline-flex relative w-24">
         <select
@@ -32,5 +33,6 @@
         </div>
       </div>
     </div>
+    <% end %>
   </nav>
 </header>