Demos: JS -> TS conversion

[tlabaj]

This Epic is to track the work to convert demos from JS to TS

### Tasks
- [ ] https://github.com/patternfly/patternfly-react/issues/9362
- [ ] https://github.com/patternfly/patternfly-react/issues/9374
- [ ] https://github.com/patternfly/patternfly-react/issues/9375
- [ ] https://github.com/patternfly/patternfly-react/issues/9376
- [ ] https://github.com/patternfly/patternfly-react/issues/9438
- [ ] https://github.com/patternfly/patternfly-react/issues/9363
- [ ] https://github.com/patternfly/patternfly-react/issues/9439
- [ ] https://github.com/patternfly/patternfly-react/issues/9447
- [ ] https://github.com/patternfly/patternfly-react/issues/9448
- [ ] https://github.com/patternfly/patternfly-react/issues/9449

[stale]

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

[wise-king-sullyman]

This epic is now complete as all of the associated issues have been closed 🎉