Describe the bug
When used in a Nuxt project, the DropDownButton component triggers the following console warning:

To Reproduce
Steps to reproduce the behavior:

1. Create a new Nuxt project following the instructions here.
2. In the app.vue file of the newly created project add the code from this example.
3. Add a Kendo Theme
4. Start the project and see the warning in the console

Expected behavior
The DropDownButton should now throw any warnings when used in a Nuxt project.