Slightly changed frontend display of certificates without CN

webroot/index.html

@@ -193,7 +193,7 @@
                             <div>
                                 <span v-if="entry.cn">{{entry.cn}}</span>
                                 <span v-else-if="entry.emailaddresses.length > 1">{{entry.emailaddresses[0]}}</span>
-                                <span v-else><em>Kein Anzeigename gefunden</em></span>
+                                <span v-else><em>&varnothing; (Kein Anzeigename)</em></span>
                                 <span v-if="entry.ou">&nbsp;({{entry.ou}})</span>
                             </div>
                             <div><small><em>Serial&nbsp;(dec)</em>:&nbsp;{{entry.serial}}</small></div>