ui: osd: mon: mds: warn if stop/destroy actions are problematic

ui: osd: mon: mds: warn if stop/destroy actions are problematic

Check if stopping of a service (OSD, MON, MDS) will be problematic for
Ceph. The warning still allows the user to proceed.

Ceph also has a check if the destruction of a MON is okay, so let's use
it.

Instead of the common OK button, label it with `Stop OSD` and so forth
to hopefully reduce the "click OK by habit" incidents.

This will not catch it every time as Ceph can need a few moments after a
change to establish its current status. For example, stopping one of 3
MONs and then right away destroying one of the last two running MONs
will most likely not trigger the warning. Doing so after a few seconds
should show the warning though.

Signed-off-by: Aaron Lauterer <a.lauterer@proxmox.com>