LT-67: Styling select2 error state and adding its error tooltip

Packages/lesiontracker/client/components/serverInformation/serverInformationDicomWeb/serverInformationDicomWeb.html

@@ -11,7 +11,7 @@
         </div>
         <div class="col-lg-6">
             {{>inputSelect labelClass='form-group' key='imageRendering' hideSearch=true
-                options=(clone placeholder='Select an option...')}}
+                options=(clone placeholder='Select an option')}}
         </div>
         <div class="col-lg-6">
             {{>inputText labelClass='form-group' key='qidoRoot'}}