Reduce heading font size

Decrease the heading font sizes for h1, h2 and h3 elements to the
default size of the next smallest heading.  See
http://getbootstrap.com/css/#type for default sizes.

Change heading element for provider entry from h3 to h2.

Addresses https://pm.theworkdept.com/issues/3892
Add right padding to left column

Add right padding to left column of provider details

Addresses https://pm.theworkdept.com/issues/3893