Add delete button for individual tokens

src/app/components/creator/_dialogs/bonus-token/bonus-token.component.html

@@ -6,6 +6,10 @@
       <h2>
         {{bonusToken.token}}
       </h2>
+      <span class="fill-remaining-space"></span>
+      <button mat-icon-button>
+        <mat-icon>close</mat-icon>
+      </button>
     </div>
   </div>
   <div *ngIf="bonusTokens.length === 0">

src/app/components/creator/_dialogs/bonus-token/bonus-token.component.scss

 h1,h2,h3,h4,h5,p{
   color: var(--on-surface);
 }
+
+h2 {
+  color: var(--on-surface);
+  margin: 10px 0 10px 0;
+}
+
+.mat-icon-button {
+  margin-top: 5px;
+  color: var(--red);
+}