Updated to angular 10

Moved to eslint for linting
Added prettier for formatting
Fixed minor errors

bookie/src/app/product/product-list/product-list.component.ts

@@ -72,7 +72,7 @@ export class ProductListComponent implements OnInit {
       );
   }
 
-  dropTable(event: CdkDragDrop<Product[]>) {
+  dropTable(event: CdkDragDrop<ProductListDataSource>) {
     const prevIndex = this.list.indexOf(event.item.data);
     moveItemInArray(this.list, prevIndex, event.currentIndex);
     this.data.next(this.list);