Migrate user preferences dialog to new framework for 6.3

User profile dialog has been migrated to new UI framework in 6.2 

https://git.magnolia-cms.com/projects/MODULES/repos/admincentral/browse/magnolia-admincentral/src/main/java/info/magnolia/admincentral/usermenu/actions?at=refs%2Fheads%2Frelease%2F6.2

Related PR: https://git.magnolia-cms.com/projects/MODULES/repos/admincentral/pull-requests/2/diff#magnolia-admincentral/src/main/java/info/magnolia/admincentral/usermenu/actions/LogoutAction.java

Ticket: https://jira.magnolia-cms.com/browse/ADMINCTR-1

Problems

• The migration and new actions (LogoutAction, EditUser ...) do not exist on 6.3 (master branch)
• This leads to some inconsistency between 6.2 and 6.3 (and SaaS webapp also)

 Todo

• Port all the changes to master branch
• Replace the LogoutAction configuration for SaaS webapp to use the new LogoutAction (https://git.magnolia-cms.com/projects/CLOUD/repos/magnolia-cloud/browse/cloud-user-menu/src/main/resources/cloud-user-menu/dialogs/userMenu.yaml#22-24)