Delete duplicate code and changed user_join_group name to
user_join_leave_group because it tests for join and leave
Delete empty lines, and add additional test to navbar_spec
Refactor duplicate code user_creates_group
Refactor user_edit_info of duplicate code
Refactor user_join_leave_group by creating variable for duplicated code
Refactor before block in user_signs_out and add new test
Delete empty lines
Refactor user_views_a_group by reducing duplication from scenario and
moving it to before each. Added test to see user email if they join a
group