Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

In the /groups/:id page, where teachers can give assignments, assign mentors, and add new members, the placeholder text displayed when there are no members, mentors, or assignments is:
There are no members in this group. Click '+ add members' button to add new members.
This placeholder text is displayed to all users, including admins, mentors, and students. However, students should not see the second line as they do not have the permission to add new members.

Also the Back Button doesn't look like a button.

Steps To Reproduce

1. Enter a group as a student (Member).
2. Observe the placeholder text when there are no members, mentors, or assignments
3. Also observe the back button

Expected Behavior

The placeholder text for students should only display the first line:
There are no members in this group

Screenshots

Device Information [optional]

- OS:
- Browser:
- version:

Additional context

No response

Are you working on this issue?

Yes