Allow address label to overflow without pushing UI

fixes #2544

frontend/src/app/components/address-labels/address-labels.component.html

@@ -1,9 +1,16 @@
-<a *ngIf="channel; else default" [routerLink]="['/lightning/channel' | relativeUrl, channel.id]">
+<ng-template [ngIf]="channel" [ngIfElse]="default">
+  <div>
+    <div class="badge-positioner">
+      <a [routerLink]="['/lightning/channel' | relativeUrl, channel.id]">
         <span 
           *ngIf="label"
           class="badge badge-pill badge-warning"
         >{{ label }}</span>
       </a>
+    </div>
+    &nbsp;
+  </div>
+</ng-template>
 
 <ng-template #default>
   <span

frontend/src/app/components/address-labels/address-labels.component.scss

@@ -1,3 +1,7 @@
 .badge {
   margin-right: 2px;
 }
+
+.badge-positioner {
+  position: absolute;
+}