OZG-6314 Fix empty header bug

alfa-client/libs/design-system/src/lib/attachment-header/attachment-header.component.ts

@@ -5,8 +5,8 @@ import { Component, Input } from '@angular/core';
   selector: 'ods-attachment-header',
   standalone: true,
   imports: [CommonModule],
-  template: `<div class="flex h-11 items-center justify-between px-3">
-    <h4 class="text-sm font-medium text-text">{{ title }}</h4>
+  template: `<div class="flex h-11 items-center justify-between px-3 empty:hidden">
+    <h4 class="text-sm font-medium text-text" *ngIf="title">{{ title }}</h4>
     <ng-content select="[action-buttons]"></ng-content>
   </div>`,
 })