Remove deprecated PatternFly components

[jenny-s51]

Components that were deprecated as part of the v5 PatternFly release are still in use.

Those deprecated components should be replaced with the non-deprecated components or approaches PatternFly now recommends.

[jessiehuff]

Closed with #48

[github-actions]

🎉 This issue has been resolved in version 6.0.0-prerelease.1 🎉

The release is available on:

• GitHub release
• npm package (@prerelease dist-tag)

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