ui: ceph pool edit: rework with controller and formulas

ui: ceph pool edit: rework with controller and formulas

instead of relying purely on listeners that then manually change other
components, we can use binds, formulas and a basic controller.

This makes it quite a bit easier to let multiple components react to
changes.

A cbind is used for the size component to set the initial start value.
Other options, like using setValue in the controller init, will trigger
the change listener and therefore can affect the min size without any
user interaction.

Signed-off-by: Aaron Lauterer <a.lauterer@proxmox.com>
Tested-by: Maximiliano Sandoval <m.sandoval@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>