DataView content cleanup

[fhlavac]

Review the DataView extension's docs and possibly plan how to make it cleaner and better structured.
Also, think about where the DataView will live in the future from the PF website perspective since the component groups are moving out from the extensions section (inside the component groups? keep in the extensions? separate nav section?)

cc @nicolethoen @edonehoo

[github-actions]

🎉 This issue has been resolved in version 5.8.0 🎉

The release is available on:

• GitHub release
• npm package (@prerelease-v5 dist-tag)

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