CopyProcessor: update existing layer

Frontend/src/app/models/layer.model.ts

@@ -19,6 +19,7 @@ export class Layer extends Base {
     name?: string;
     records: Record[] = [];
     created?: string;
+    modified?: string;
     type?: LayerType;
 
     constructor(data: Partial<Layer> = {}) {

Frontend/src/app/modules/layers/layer-detail/layer-detail.component.html

@@ -30,7 +30,12 @@
             <input matInput disabled [value]="document.created">
           </mat-form-field>
         </div>
-        <div class="col"></div>
+        <div class="col">
+          <mat-form-field class="full-width" appearance="outline" *ngIf="document">
+            <mat-label>Modified</mat-label>
+            <input matInput disabled [value]="document.modified">
+          </mat-form-field>
+        </div>
       </div>
 
       <table mat-table [dataSource]="dataSource" matSort matSortActive="code" matSortDisableClear

Frontend/src/app/modules/layers/layer-detail/layer-detail.component.ts

@@ -54,6 +54,7 @@ export class LayerDetailComponent implements OnInit {
     this.document.fillForm(this.form);
     this.form.disable();
     this.document.created = `${this.datePipe.transform(this.document.createdAt?.toDate(), 'short')}, ${this.document.createdBy?.userName}`;
+    this.document.modified = `${this.datePipe.transform(this.document.modifiedAt?.toDate(), 'short')}, ${this.document.modifiedBy?.userName}`;
     this.valueSum =  this.document.records.map(t => t.value1 || 0).reduce((acc, value) => acc + value, 0);
     this.createColumns();
   }