Wizard: react demo needs updated

[kaylachumley]

There is a bug with the demo and a few visual changes needed -- the demo is setting the modal to be 400px tall but it needs to be the default height of 762px. (defined here).

• Add bottom divider to the wizard header Added core issue Wizard - add bottom border to wizard header patternfly#6803
• Change all drawers within wizard to have a primary default bkg

[kaylachumley]

@mcoker @tlabaj created the issue to fix the height and a few additional design changes! lmk if you have any questions

[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.