Restructure migration section

The current structure of the migration section makes it a little difficult to navigate.
Based on the feedback, the following changes are being made:
- Split the migration section into two, so that it is more readable.
- Push cloning to the top, as this is one of the easier methods.

JIRA: https://issues.redhat.com/browse/SAT-29194

guides/common/assembly_upgrading-to-rhel9.adoc

@@ -1,5 +1,7 @@
 include::modules/con_upgrading-el-on-project-or-proxy.adoc[]
 
-include::modules/proc_upgrading-project-or-proxy-in-place-using-leapp.adoc[leveloffset=+1]
+include::modules/proc_migrating-project-or-smartproxy-using-clone.adoc[leveloffset=+1]
+
+include::modules/proc_migrating-project-or-smartproxy-using-backup-restore.adoc[leveloffset=+1]
 
-include::modules/proc_migrating-project-or-smartproxy-using-backup.adoc[leveloffset=+1]
+include::modules/proc_upgrading-project-or-proxy-in-place-using-leapp.adoc[leveloffset=+1]

guides/common/modules/con_upgrading-el-on-project-or-proxy.adoc

@@ -4,9 +4,9 @@
 {Project} and {SmartProxy} are supported on both {EL} 8 and {EL} 9.
 You can use the following methods to upgrade your {Project} and {SmartProxy} operating system from {EL} 8 to {EL} 9:
 
-* Leapp in-place upgrade
-* Migration by using backup and restore
 * Migration by using cloning
+* Migration by using backup and restore
+* Leapp in-place upgrade
 
 With Leapp, you can upgrade your {Project} or {SmartProxy} in place therefore it is faster but imposes a downtime on the services.
 With migration, you can move your {Project} or {SmartProxy} to a fresh {EL} 9 system.

guides/common/modules/proc_migrating-project-or-smartproxy-using-backup.adoc → guides/common/modules/proc_migrating-project-or-smartproxy-using-backup-restore.adoc

@@ -1,13 +1,9 @@
-[id="migrating-{project-context}-or-proxy-using-backup_{context}"]
-= Migrating {Project} or {SmartProxy} to {EL-abbr}{nbsp}9
+[id="migrating-{project-context}-or-proxy-using-backup-restore_{context}"]
+= Migrating {Project} or {SmartProxy} to {EL-abbr}{nbsp}9 using backup and restore
 
 You can migrate your existing {ProjectServer} and {SmartProxyServer} from {EL}{nbsp}8 to a freshly installed {EL}{nbsp}9 system.
 ifdef::satellite[]
-The migration involves creating a backup of the existing {ProjectServer} and {SmartProxyServer}, which you then restore or clone on the new {EL}{nbsp}9 system.
-[NOTE]
-====
-You can use cloning for {ProjectServer} backups but not for {SmartProxyServer} backups.
-====
+The migration involves creating a backup of the existing {ProjectServer} and {SmartProxyServer}, which you then restore on the new {EL}{nbsp}9 system.
 endif::[]
 ifndef::satellite[]
 The migration involves creating a backup of the existing {ProjectServer} and {SmartProxyServer}, which you then restore on the new {EL}{nbsp}9 system.
@@ -20,13 +16,9 @@ For more information, see {AdministeringDocURL}backing-up-{project-context}-serv
 . Deploy a system with {EL}{nbsp}9 and the same hostname and configuration as the source server.
 This is the target server.
 ifdef::satellite[]
-. Restore the {ProjectServer} backup by following one of these options:
-** Restore the backup.
+. Restore the backup.
 Restore does not significantly alter the target system and requires additional configuration.
 For more information, see {AdministeringDocURL}restoring-{project-context}-server-or-{smart-proxy-context}-from-a-backup_admin[Restoring {ProjectServer} or {SmartProxyServer} from a backup] in _{AdministeringDocTitle}_.
-** Clone the server.
-Clone configures hostname for the target server and you can test it before retiring the source server.
-For more information, see {AdministeringDocURL}sec-Cloning_to_Target[Cloning to the target server] in _{AdministeringDocTitle}_.
 . Restore the {SmartProxyServer} backup.
 For more information, see {AdministeringDocURL}restoring-{project-context}-server-or-{smart-proxy-context}-from-a-backup_admin[Restoring {ProjectServer} or {SmartProxyServer} from a backup] in _{AdministeringDocTitle}_. 
 endif::[]

guides/common/modules/proc_migrating-project-or-smartproxy-using-clone.adoc

@@ -0,0 +1,22 @@
+[id="migrating-{project-context}-or-proxy-using-clone_{context}"]
+= Migrating {Project} or {SmartProxy} to {EL-abbr}{nbsp}9 using clone
+
+You can clone your existing {ProjectServer} and {SmartProxyServer} from {EL}{nbsp}8 to a freshly installed {EL}{nbsp}9 system.
+ifdef::satellite[]
+Create a backup of the existing {ProjectServer} and {SmartProxyServer}, which you then clone on the new {EL}{nbsp}9 system.
+[NOTE]
+====
+You can use cloning for {ProjectServer} backups but not for {SmartProxyServer} backups.
+====
+endif::[]
+
+.Procedure
+. Perform a full backup of your {ProjectServer} or {SmartProxy}.
+This is the source {EL}{nbsp}8 server that you are migrating.
+For more information, see {AdministeringDocURL}backing-up-{project-context}-server-and-{smart-proxy-context}_admin#Performing_a_Full_Backup_admin[Performing a full backup of {ProjectServer} or {SmartProxyServer}] in _{AdministeringDocTitle}_.
+. Deploy a system with {EL}{nbsp}9 and the same hostname and configuration as the source server.
+This is the target server.
+ifdef::satellite[]
+. Clone the server.
+Clone configures hostname for the target server and you can test it before retiring the source server.
+For more information, see {AdministeringDocURL}sec-Cloning_to_Target[Cloning to the target server] in _{AdministeringDocTitle}_endif::[]