Empty state sizing is inconsistent with other components

[rebeccaalpert]

Describe the issue. What is the expected and unexpected behavior?
Other PatternFly components use a convention of "xs," "sm," "md," etc. Empty state has these values spelled out in full, i.e. "large."

Is this a bug or enhancement? If this issue is a bug, is this issue blocking you or is there a work-around?
This is a bug. It's not a blocker, but it would be great if this could be made consistent in a future breaking changes release.

[dlabrecq]

Looking at the 'full' variant and it appears be an empty string. Perhaps it could be 'xxl', or possibly omitted?

[tlabaj]

closed by #3933