[Types] Supplying classes via concise syntax and property yields type error

### Marko Version: Compiler 5.39.28 / Extension 2.0.1

### Details

Supplying classes via concise syntax and additionally via the class property (`button.btn class="foo"`) yields a TS error

<img width="497" height="200" alt="Image" src="https://github.com/user-attachments/assets/762d63a1-0d37-4a29-86f8-d4f874605b36" />