Permission->Groups : Incorrect success message is displayed when a member is added to the group.

[jmgasper]

REF: https://topcoder.atlassian.net/browse/PM-1087

In Permission->Groups : Incorrect success message is displayed when a member/user is added to the group.

Expected result:

“Member added successfully” should be displayed.

Actual result:

“Group added successfully” is displayed

https://github.com/user-attachments/assets/5e6cde17-c5db-4467-907c-7cee83d8ed3f

[phead198708]

Ready for review: #1053