[Improvement] Redundant text in "Add User Group" and "Add User" pop-up box

### What would you like to be improved?

### How should we improve?

Remove redundant text in "Add User Group" and "Add User" pop-up box

The issue identifies the Add User Group and Add User pop-up boxes and includes screenshots of the redundant text. Start by locating those dialog labels and their surrounding UI text in the project, then verify both dialogs no longer show the redundant wording.

Written by the indexing model from the issue text.