Shortcut to evaluate code lenses

**Is your feature request related to a problem? Please describe.**

This feature request is not related to a problem.

**Describe the solution you'd like**

The eval plugin allows users to test code quickly directly in the same source file in which they're working. Unfortunately, evaluating the code requires clicking with the mouse on the "Evaluate" or "Refresh" code lenses, which is annoying if you're committed to a keyboard-only workflow.

Ideally, you could set up a keyboard shortcut that triggers the evaluation of the code lens directly, without requiring the usage of the mouse.

**Describe alternatives you've considered**

Continue using the mouse to trigger code lens evaluations :disappointed:

**Additional context**