fix: GUI: hide submit button if select tag is the only element

[shanaya-Gupta]

Fix for Issue #34

Issue: GUI: hide submit button if select tag is the only element

Changes:

• Modified: mininterface/_tk_interface/facet.py

Please review carefully before merging.

[e3rd]

Hi, thanks for such a quick reply. However, this seem to do nothing. Running the code will not hide the button:

$ mininterface select one two three

Do you need help getting started with the project? I can help you.