Allow downloading 2FA recovery codes as a file.
Problem to solve
Many websites after the user enables 2FA on their account will be taken to a page with backup codes similar to GitLab but they will also show a button allowing the user to download their codes as a file.
This makes it more convenient to store the codes than copying them and opening a text editor to paste and save them.
Proposal
Add a button to the 2FA recovery codes page with the text "Download" which starts a download for a file gitlab-recovery-codes.txt