Ticket 49795 - UI - add "action" backend funtionality
    
    Description:  Added the backend functionality for all the items in the "Action"
                  dropdown list on the banner.
    
                  Added ability to use the instance name in dsconf, previously
                  only ldap URLs worked.
    
                  Added more helper functions:
    
                    popup_confirm() - this now accepts html tags so nicer output
                    get_ldapurl_from_serverid(server_id) - take an instance name
                      and generate a LDAP URL from its dse.ldif
    
                  And of course did some code cleanup.
    
    https://pagure.io/389-ds-base/issue/49795
    
    Reviewed by: ?