Have ~50 records in a column,
Mark 49 of them as blocked (kanban_state field)
Mark 1 or 2 as done
Before this commit, the bar that showed the proportions of blocked objects was invisible
This was because the min-width of a bar was 10px, without max-width
Leaving the red bar to 95% or something, the green bar to 10px
All of this overflowing 100%
After this commit, we compute max-width and min-width to be able to fit everything
within the progress bar
OPW 1867464
closes#25962