Use correct variable for date direction

messageviewer/src/messageviewerheaderplugins/defaultgrantleeheaderstyleplugin/theme/5.2/header.html

@@ -74,7 +74,7 @@
 		{% endif %}
 		<div class="row">
 			<div class="headerleft">{{ header.datei18n }}</div>
-			<div class="headerrightdate" dir="{{ dateDir }}">{{ header.dateshort }}</div>
+			<div class="headerrightdate" dir="{{ header.applicationDir }}">{{ header.dateshort }}</div>
 		</div>
 		{% if header.spamHTML %}
 		<div class="row">