Update creating-custom-views-for-blocklist.md

Update another code example

Author: iOvergaard

15/umbraco-cms/tutorials/creating-custom-views-for-blocklist.md

@@ -80,7 +80,8 @@ Let us create an `example-block-custom-view.ts` file with the following code:
 ```typescript
 import { html, customElement, LitElement, property, css } from '@umbraco-cms/backoffice/external/lit';
 import { UmbElementMixin } from '@umbraco-cms/backoffice/element-api';
-import type { UmbBlockDataType, UmbBlockEditorCustomViewElement } from '@umbraco-cms/backoffice/extension-registry';
+import type { UmbBlockEditorCustomViewElement } from '@umbraco-cms/backoffice/block-custom-view';
+import type { UmbBlockDataType } from '@umbraco-cms/backoffice/block';
 
 @customElement('example-block-custom-view')
 export class ExampleBlockCustomView extends UmbElementMixin(LitElement) implements UmbBlockEditorCustomViewElement {