Reduce the min-width and width for the progress bar

Not sure I follow entirely, but it seems to me the issue is with progress bars that have a border radius (e.g. Olivero and Claro, but not the one in core/misc). Perhaps we can use calc to offset the border radius on each side of the progress track and see how it looks from there.

sheetal.pathak → made their first commit to this issue’s fork.

Created MR for setting progress bar with to 2%
Added with for Olivero theme as only, as in Claro it is working fine.
Added Screenshot for 2% width Progress bar.

Please review.

I will review in sometime.

I have unassigning it as I was not able to reproduce this issue.

Steps I followed:

1. Changed the theme to "olivero"
2. Tried to create a new field and save it. The progress bar didn't show up.