Data Validation: Dropdown cell value selector

[luke-quadratic]

Dropdown menu whose option can be read by cells.

E.g. if dropdown value is 5 I could reference the dropdown from a Python cell to get that value of 5 into my code.

Design tbd, lots of possible approaches

+1 from recent unprompted user feedback (3/1/2024)

[davidkircos]

I think this makes sense as a data validation on cell values.

[luke-quadratic]

+1 from active team on being able to filter in the dropdown by typing search criteria