Changes have to be done in the v6 branch, not main!

GH issue: https://github.com/patternfly/react-component-groups/issues/219 

• update icon color and text color to use the standard out of the box token color. This color should be global/icon/color/default
•  Lets remove the override for the gray 50 color. If new colors do need to be defined lets map out to our semantic tokens.
•  update padding left and right to be 16px and update padding top and bottom to be 8px. (global/spacer/sm)