Feature Request : Custom Timer's format

Hi, Bubbles is a really cool library with some easy-to-use plugin to use in bubble-tea.

I tried to play a bit with the timer, which currently display the timeout duration in Hour,Min,Sec,MilliSeconds.

But there could be some use case (and I have one) where the amount of hour is just too big so it could be great to display days and month as well.

It could be either by having the timer handling it automatically or having a way to customize its behaviour for the user.