Modals close when user highlights text and releases mouse outside

[Will Garrett]

For example, when a user is creating a new wallet, if they highlight some text and releases the mouse outside of the overlay, it closes. See video below:

chrome_8phYK92tAi.mp4

This should only close if the user clicks outside the overlay (mousedown/up), but not when the user just releases the mouse outside the overlay (mouseup)