Merge pull request #3720 from tsiegleauq/conversations_hook

add template hook in user div

openslides/core/static/templates/index.html

@@ -40,6 +40,8 @@
       <div class="btn-group">
         <div ng-if="operator.isAuthenticated()">
 
+          <template-hook hook-name="indexHeaderAdditionalOptions"></template-hook>
+
           <!-- chatbox -->
           <div ng-controller="ChatMessageCtrl" os-perms="core.can_use_chat" class="inline">
             <a href ng-click="openChatbox()" class="headerlink"