Copybutton disappears too quickly if you click copy then move the cursor off the code cell #175
Description
Describe the bug
This is a minor UX bug, but the copybutton hides itself a bit too aggressively when you move out of the code cell while the "green check" is displayed:
Reproduce the bug
Seen here: https://sphinx-copybutton.readthedocs.io/en/latest/
List your environment
No response