Fixes #20098 - Resolve template_used for image provisioning

At the moment, the method Hostext::OperatingSystem#template_kinds is
unable to handle image-based provisioning. If there is an image, it will
not be able to find it as 'self.compute_attributes' does not exist for...

Fixes #20800 - Comply with Patternfly login page recommendations

• Move alerts inline above form
• Make submit button not show a "loading" state

Refs #19707 - test searching domains with locs

Fixes #20708 - fix templates auditing

Templates were audited under parent class. This keeps separate audits
per template type and allows searching by provisioning_template and
partition_table names. It also fixes broken associations in
taxable_taxonomies table.

Fixes #19742 - cache hosts for fact values

When we generate fact values hash we always loaded a host for a given
fact. This in combination with taxonomies queryies that are
automatically generated caused roughly 6N+1 issue. We can preload all
hosts that are required and use this in-memory cache for generating the...

Fixes #20840 - show error on invalid name for any parameter

Updating any type of Parameter such as
subnet_parameter/host_parameter with invalid name
doesn't show any error.
With this commit, it is now showing error on parameters with
invalid name.

Fixes #20589 - update login_at when extlogin is used

Fixes #20516 - GET hosts API displays owner_name attribute

Fixes #20500 - Allow GET /api/hostgroups to include parameters

Add include Array parameter to GET /api/hostgroups v2 that will
optionally include a hostgroup's parameters when the include parameter
contains 'parameters'.

Fixes #20737 - add default description to roles