Code editor - use RedHatMono font

[mcoker]

Spotted in #11575

The current code editor uses a different code/mono font than the rest of patternfly. Looks like we can pass fontFamily: 'var(--pf-t--global--font--family--mono)' to editorOptions to use the RedHatMono font.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[mcoker]

closed via #11785