Final Result Submission Delay for League Meets

[tweirtx]

Is your feature request related to a problem? Please describe.
At the end of league meets, we always have to run a 5-minute timer before we submit results to allow for T402.

Describe the solution you'd like
A built-in timer that shows on the results submission page that starts automatically.

Describe alternatives you've considered
No problem with doing our own timers, but having a built-in one would be more convenient.