Add banner on register page too

client/src/app/+login/login.component.html

@@ -107,7 +107,7 @@
       </div>
 
       <div #instanceInformation class="instance-information">
-        <my-instance-banner class="rounded"></my-instance-banner>
+        <my-instance-banner rounded="true"></my-instance-banner>
 
         <my-instance-about-accordion
           #instanceAboutAccordion

client/src/app/+signup/+register/steps/register-step-about.component.html

@@ -1,3 +1,5 @@
+<my-instance-banner class="d-block mb-3" rounded="true"></my-instance-banner>
+
 <div class="why">
   <h3 i18n>Why creating an account?</h3>
 

client/src/app/shared/shared-instance/instance-banner.component.html

@@ -1,3 +1,3 @@
-<div class="banner" [ngClass]="{ rounded }">
+<div *ngIf="instanceBannerUrl" class="banner" [ngClass]="{ rounded }">
   <img class="rounded" [src]="instanceBannerUrl" alt="Instance banner">
 </div>

client/src/app/shared/shared-instance/instance-banner.component.ts

@@ -6,7 +6,7 @@ import { InstanceService } from './instance.service'
   templateUrl: './instance-banner.component.html'
 })
 export class InstanceBannerComponent implements OnInit {
-  @Input({ transform: booleanAttribute }) rounded: boolean
+  @Input({ transform: booleanAttribute }) rounded = false
 
   instanceBannerUrl: string