### Bug report
When integrating components into the ToolBar by using the TemplateId() or TemplateView() options, the ToClientTemplate() option throws a client-side error "SyntaxError: Failed to execute 'appendChild' on 'Node': Unexpected token '<'".
When the component is added to the template without the ToClientTemplate() option, the component is rendered as expected in the ToolBar.
### Reproduction of the problem
A REPL sample for reproduction: https://netcorerepl.telerik.com/cTYqlaPG12psetl157
Remove the ToClientTemplate() option to observe how the DropDownList is rendered as expected.
### Expected/desired behavior
When using an external Kendo UI Template, any nested components must be defined with the ToClientTemplate() option.
### Environment
* **Telerik UI for ASP.NET Core version: 2025.2.520
* **jQuery version: 3.7.1
* **Browser: [all]
The relevant attributes are applied to the list item instead of the anchor tag of the Toolbar's dropdown
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