Make search and select work for truncated text

fixes #4367

frontend/src/app/shared/components/truncate/truncate.component.html

@@ -11,9 +11,11 @@
 </span>
 
 <ng-template #ltrTruncated>
+  <div class="hidden">{{ text }}</div>
   <span class="first">{{text.slice(0,-lastChars)}}</span><span class="last-four">{{text.slice(-lastChars)}}</span>
 </ng-template>
 
 <ng-template #rtlTruncated>
+  <div class="hidden">{{ text }}</div>
   <span class="first">{{text.slice(lastChars)}}</span><span class="last-four">{{text.slice(0,lastChars)}}</span>
 </ng-template>