Dark theme is currently broken on PatternFly org

[dlabaj]

Describe the problem
Currently the fix to save the dark or light theme sometimes does not persist. It currently needs more investigation to root cause the issue.

Expected behavior
A clear and concise description of the expected behavior.

Screenshots
If applicable, add screenshots to help explain the issue.

Any other information?

[kmcfaul]

We will be moving to a three way switch (light/dark/system)