simplify HA Information in VM/CT Summary panel.
Use the already translated 'HA State' instead of 'Managed by HA'
(which now becomes obsolete as it was the single appearance).
Simplify PVE.Utils.format_ha respectively to mach the new name,
as here is the only use of this function we have no side effects.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com> Acked-by: Dominik Csapak <d.csapak@proxmox.com>