Change the mute/ban time left timer for less than a minute from saying N/A to <1 minute

Rather than Vortex making it look like someone is muted or banned permanently when the timer dips below a minute, it would be easier to see that they still have under a minute left before it expires.

Locate the code that formats the remaining mute and ban durations; the issue provides no file or test entry point. Verify the current N/A behavior below one minute, then confirm that active timers display "<1 minute" and longer durations remain unchanged.

Written by the indexing model from the issue text.