Request - sleep/trace/stopped/disk-sleep indicator

[ThomasByr]

Hi !
First of all, thanks for the library, it is awesome and i use it everywhere.
I even found myself using it in some company where we have large servers with a ton going on. Which brings me to my suggestion.

On some potato configurations, memory/IO intensive programs are subject to temporary halts.
We can actually see them in htop with the status being S, t or D (blocking IO) (R and Z are running fine I guess).
I do not how how easy or ridulously hard it is to capture the state of the program (similar to ps r) in alive-progress to display a pause icon instead of the running spinner when applicable.

Anyway, a huge thank you for this amazing library <3