restructure the existing field positions a bit to make it more
balanced with the new NS field.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
similar in spirit of PVE's storage entries for PBS, changing those
after create can make backups disappear and just shouldn't be done,
user should add a new remote instead.
Same for user name, changing it will make backup almost definitively
fail the owner check, so only keep the password field, for PW
rotations (we should disable it for tokens though).
For UX it's better to check if params are correct and the repo is
accessible on create and to add scan datastore and namespace
endpoints to allow a friendlier selection of those, avoiding typos.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
