Display network logo in the top bar.

Allow search for block height.
Hide empty bisq blocks.

frontend/src/app/bisq/bisq-block/bisq-block.component.html

@@ -1,7 +1,7 @@
 <div class="container-xl">
 
   <div class="title-block">
-    <h1>Bisq Block <ng-template [ngIf]="blockHeight"><a [routerLink]="['/block/' | relativeUrl, blockHash]">{{ blockHeight }}</a></ng-template></h1>
+    <h1>Block <ng-template [ngIf]="blockHeight"><a [routerLink]="['/block/' | relativeUrl, blockHash]">{{ blockHeight }}</a></ng-template></h1>
   </div>
 
   <div class="clearfix"></div>