### What?
Tenant Selector doesn’t honor the custom order when ‘orderable’ is
enabled for Tenant collection
### Why?
Currently, it uses "useAsTitle" to sort. In some use cases, for example,
when a user manages multiple tenants that have an inherent priority
(such as usage frequency), sorting purely by the useAsTitle isn’t very
practical.
### How?
Get "orderable" config from the tenant collection's config, if it has
"orderable" set as true, it will use _order to sort. If not, it will use
"useAsTitle" to sort as default.
Fixes#12246
a6d76d6058