several fixes and optimizations

layouts/partials/header.html

@@ -1,6 +1,4 @@
-<!-- header -->
 <header class="fixed-top header">
-  <!-- top header -->
   {{ if .Site.Params.top_header }}
   <div class="top-header py-2 bg-white">
     <div class="container">
@@ -24,7 +22,6 @@
     </div>
   </div>
   {{ end }}
-  <!-- navbar -->
   <div class="navigation w-100 {{ if .Site.Params.top_header }} top-hider {{ end }}">
     <div class="container">
       <nav class="navbar navbar-expand-lg navbar-dark p-0">
@@ -60,7 +57,6 @@
             {{ end }}
           </ul>
 
-          <!-- Language List -->
           {{ if .IsTranslated }}
           <select class="m-2 border-0" id="select-language" onchange="location = this.value;">
             {{ $siteLanguages := .Site.Languages}}
@@ -81,10 +77,8 @@
             {{ end }}
           </select>
           {{ end }}
-          <!-- /LL -->
         </div>
       </nav>
     </div>
   </div>
 </header>
-<!-- /header -->