Refactor persistentvolume data props

[rak-phillip]

Summary

This refactors components under shell/edit/persistentvolume so that data initialization logic is no longer in the data prop.

Fixes #14864

Occurred changes and/or fixed issues

• Refactor persistentvolume data props

Technical notes summary

Most of the changes represented in this PR fall under two buckets:

1. Moving data props over to computed props
2. Moving data initialization into the created hook

Areas or cases that should be tested

Persistent volumes - created/edit/delete

Areas which could experience regressions

Moving initialization code from data to the created hook can alter the component logic. Common side-effects will be exposed as components failing to render, or rendering with incorrect default data.

Screenshot/Video

NA

Checklist

• The PR is linked to an issue and the linked issue has a Milestone, or no issue is needed
• The PR has a Milestone
• The PR template has been filled out
• The PR has been self reviewed
• The PR has a reviewer assigned
• The PR has automated tests or clear instructions for manual tests and the linked issue has appropriate QA labels, or tests are not needed
• The PR has reviewed with UX and tested in light and dark mode, or there are no UX changes
• The PR has been reviewed in terms of Accessibility
• The PR has considered, and if applicable tested with, the three Global Roles Admin, Standard User and User Base

[rak-phillip]

@mantis-toboggan-md this has been rebased on top of master and is ready for review.

[mantis-toboggan-md]

LGTM