Fixes #32584 - drop flot charts

All uses of flot charts have been deprecated and are rendering React
counterparts. We can remove flot charts now.

Fixes #23665 - Patternfly charts on Host Detail

We are still using deprecated method `flot_chart` to render the Host
detail page charts. It works, but we should migrate to rendering
React components directly.

Fixes #32589 - add a support for Oracle Linux registration

The same subscription-manager flow needs to be activated also for OL. We
need to make sure we install the subscription-manager explicitly,
because rhn-client-tools would be installed instead to satistfy the...

Fixes #32860 - move toast list to app's root (#8618)

Toasts were triggered only from pages that used the PageLayout component,
or that used the `notifications` helper. Now they will always be triggered directly
from the root of the app.
Deprecated the `notifications` method so toast won't appear twice in pages...

Fixes #32928 - Allow templates to hide preview button

Fixes #32490 - proper permission for ansible (#8630)

The file `/root/ansible_provisioning_call.sh` needs to be runnable.

Co-authored-by: Aldrey Galindo <aldreygalindo@gmail.com>

Fixes #32715 - add custom snippets to finish template

Co-authored-by: Lukáš Zapletal <lukas@zapletalovi.com>

Co-authored-by: Ondřej Ezr <ezrik12@gmail.com>

Fixes #32741 - Allow merge for yaml/json variables

Fixes #32842: Don't disable MAC address input for VMs being imported

Fixes #32851 - Add parameter to run attach --auto

Add parameter to provisioning templates to run attach --auto after registering