try to make network-empty-banner more responsive

src/app/components/network-empty-warning/network-empty-warning.component.html

-<div id="network-empty-banner" *ngIf="!getClosedState()" class="center notification" style="background-color: rgba(255,41,41,0.6);">
-  <span class="px-6">Network is empty! Please contact the page developer is this is unexpected.</span>
+<div id="network-empty-banner" *ngIf="drugstoneConfig.gettingNetworkEmpty" class="center notification" style="background-color: rgba(255,41,41,0.6);">
+  <span class="px-6">Network is empty! Please contact the page developer if this is unexpected.</span>
 </div>