Consider page visibility when marking messages as read

src/partials/messenger.conversation.html

@@ -48,7 +48,8 @@
             </li>
             <li ng-repeat="message in ctrl.messages" id="message-{{message.id}}">
                 <eee-message eee-receiver="ctrl.receiver" eee-type="ctrl.type" eee-message="message"
-                             in-view="$inview  && !ctrl.locked && ctrl.msgRead(message.id)"></eee-message>
+                             in-view="$inview  && !ctrl.locked && ctrl.msgRead(message.id)"
+                             in-view-options="{ considerPageVisibility: true }"></eee-message>
             </li>
             <li ng-if="ctrl.isTyping()" class="typing-indicator">
                 <!-- Non status messages -->