Fix issue create media folder throw error (#19854)

Co-authored-by: Lan Nguyen Thuy <lnt@umbraco.dk>

src/Umbraco.Web.UI.Client/src/packages/media/media/audit-log/info-app/media-history-workspace-info-app.element.ts

@@ -42,7 +42,9 @@ export class UmbMediaHistoryWorkspaceInfoAppElement extends UmbLitElement {
 	}
 
 	async #requestAuditLogs() {
-		const unique = this.#workspaceContext?.getUnique();
+		if (!this.#workspaceContext) return;
+
+		const unique = this.#workspaceContext.getUnique();
 		if (!unique) throw new Error('Media unique is required');
 
 		const { data } = await this.#auditLogRepository.requestAuditLog({