Is it possible to support Unicode characters in node name

**Is your feature request related to a problem? Please describe.**
When I create a new node and enter Chinese characters in the Name input box, I get an error message: "Invalid model name: use only letters, digits and underscores."

**Describe the solution you'd like**
Chinese characters are accepted as mode Name.

**Describe alternatives you've considered**
None.

**Additional context**
None.
