add tree item element to render tree item extensions

src/Umbraco.Web.UI.Client/src/backoffice/shared/components/tree/tree-item/tree-item.element.ts

@@ -0,0 +1,29 @@
+import { css, html } from 'lit';
+import { UUITextStyles } from '@umbraco-ui/uui-css/lib';
+import { customElement, property } from 'lit/decorators.js';
+import { UmbLitElement } from '@umbraco-cms/internal/lit-element';
+import { EntityTreeItemResponseModel } from 'libs/backend-api/src';
+import { ManifestTreeItem } from 'libs/extensions-registry/tree-item.models';
+
+@customElement('umb-tree-item')
+export class UmbTreeItemElement extends UmbLitElement {
+	static styles = [UUITextStyles, css``];
+
+	@property({ type: Object, attribute: false })
+	item?: EntityTreeItemResponseModel;
+
+	render() {
+		return html`<umb-extension-slot
+			type="treeItem"
+			.filter=${(manifests: ManifestTreeItem) => manifests.conditions.entityType === this.item?.type}
+			.props=${{
+				item: this.item,
+			}}></umb-extension-slot>`;
+	}
+}
+
+declare global {
+	interface HTMLElementTagNameMap {
+		'umb-tree-item': UmbTreeItemElement;
+	}
+}