[DSC-2256] Refactor metadata tracking in component template and remove unused trackUpdate method

Author: atarix83

src/app/cris-layout/cris-layout-matrix/cris-layout-box-container/boxes/metadata/row/metadata-container/metadata-container.component.html

@@ -8,7 +8,7 @@
       }
       @if (!isStructured) {
         <div class="d-flex col flex-wrap" [class.flex-column]="!field.valuesInline">
-          @for (metadataValue of metadataValues ; track trackUpdate($index, metadataValue); let last = $last) {
+          @for (metadataValue of metadataValues ; track metadataValue; let last = $last) {
             <ds-metadata-render [field]="field"
               [item]="item"
               [box]="box"

src/app/cris-layout/cris-layout-matrix/cris-layout-box-container/boxes/metadata/row/metadata-container/metadata-container.component.ts

@@ -200,7 +200,4 @@ export class MetadataContainerComponent implements OnInit {
       (field.fieldType === LayoutFieldType.METADATA.toString() && this.item.firstMetadataValue(field.metadata));
   }
 
-  trackUpdate(index: number, value: string) {
-    return value;
-  }
 }