VM's boot order tab

[torchiaf]

Summary

PR Checklist

• Is this a multi-tenancy feature/bug?
  • Yes, the relevant RBAC changes are at:
• Do we need to backport changes to the old Rancher UI, such as RKE1?
  • Yes, the relevant PR is at:
• Are backend engineers aware of UI changes?
  • Yes, the backend owner is:

Fixes harvester/harvester#3325

Occurred changes and/or fixed issues

Technical notes summary

Todo

• css refactoring

It adds a new tab in VM edit page to handle devices boot order in one place.

Areas or cases that should be tested

Areas which could experience regressions

Screenshot/Video

Boot Order, edit page

Boot Order, view page