[UX] Loading indicator when resizing partitions

[rugk]

I've recently used blivet GUI to resize an LVM partition (shrink one and grow another one). See https://unix.stackexchange.com/q/583639/146739.
It had 4 tasks and it seems to be stuck and not go on.

The progress bar stayed at 0% for minutes.

SO IMHO, for UX reasons, you should have a better loading indicator. Maybe one that shows that the current task is still active.

As an example see how gparted does it.

[vojtechtrefny]

Unfortunately blivet doesn't provide progress for the resize operation itself so I can't show the progress in the GUI, but I'll try to think of some way how to indicate the action is still "alive".