Issue 50994 - Fix latest UI bugs found by QE
    
    Description:
    
    This address many bugs, most of whioch is very small fixes:
    
    - [Bug 1816563] Referential integrity scope values are not saved in cockpit
    - [Bug 1816599] Initializing database from Ldif is broken in Cockpit
    - [Bug 1816708] Removing objectclass does not ask for confirmation
    - [Bug 1816712] Removing attribute does not ask for confirmation
    - [Bug 1816928] Other tabs become unclickable Or unresponsive if you click on Replication tab under Monitoring tab (WORKED FOR ME)
    - [Bug 1816956] Removing an attribute uniqueness does not ask for confirmation
    - [Bug 1816958] Run Fixup Task for USN under Plugins tab either Cleanup Suffix Or Cleanup Backend option should be there not the both
    - [Bug 1817062] Created attribute uniqueness is not visible after page refresh
    - [Bug 1817098] Instance fails to start after creating attribute uniqueness because of a missing attribute
    - [Bug 1817396] Various display problems on 'Server Settings'/'Security' Tab
    - [Bug 1817415] The 'Security Settings' refresh button does not work
    - [Bug 1817526] Cannot change Bind DN name in agreement
    - [Bug 1817554] cockpit crashes when creating new sasl mapping
    - [Bug 1817580] Reindex button is greyed out in Reindex Suffix
    - [Bug 1817585] Changing the SASL mapping priority prevents to create mapping
    - [Bug 1817983] Directory Manager Password can only be change when user click on Storage Scheme option
    - [Bug 1818016] Directory Manager Password is changing before the change in password storage scheme
    - [Bug 1818020] Confirm password field under Server setting's Directory manager tab not doing field check
    - [Bug 1818027] Cockpit broken when saving new changelog directory
    - [Bug 1818823] Can create replication manager without password and then it can't be deleted
    
    relates: https://pagure.io/389-ds-base/issue/50994
    
    Reviewed by: firstyear & spichugi(Thanks!!)
    
    Updates
    
    - Remove excessive/nested spinner toggling for many of the plugins
    - Updated specfile for cockpit-389-ds to require 389-ds-base
    - Fixed how attribute uniquness plugins are created and found, and
    made it more robust to handle enabled and disabled plugins