Show group name on flash container when group is created from Admin area

What does this MR do?

Currently, groups can be created from two places.

1. Admin area /admin/groups
2. User Dashboard /dashboard/groups.

When group is created from User Dashboard, we show Group name in flash container upon success of group creation, but we don't show the same when group is created from Admin area, this MR shows group name when creating from Admin area too.

Why was this MR needed?

This MR fixes inconsistency between Flash container message while create groups.

Screenshots

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• [ ] Documentation created/updated
• [ ] API support added
• Tests
  • [ ] Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #21683 (closed)