Refactor components/ build demos to use composable Menu + Toggle under the hood

[nicolethoen]

trafficstars

Avoiding breaking changes: i.e. don't change API and existing props

Build demos for the following:

• [x] #6017
• [x] #6018
• [x] #6019
• [x] #6016
• [x] #6888
• [x] #7367

Build simple new components

• [ ] #7321
• [x] #7322
• [ ] #7344
• [ ] #7345
• [ ] #7346
• [ ] #7347
• [ ] #7348

The following accessibility issues should be addressed when the actual components are refactored under the hood:

• [ ] #5490
• [ ] #5095
• [ ] #6029
• [ ] Disabled menu options tooltips should be accessible

[nicolethoen]

Note: https://github.com/patternfly/patternfly-react/issues/1615

[nicolethoen]

Ideally, completion of this epic also addresses keyboard a11y issues in this older epic: https://github.com/patternfly/patternfly-react/issues/3108

[tlabaj]

All related demos have been built out. I am closing this issue and tracking implementation of new components in this epic Epic- Build next versions of menu like components