Issues related to Group Management

[ivanmaslow]

There are some issues related to Group Management sidebar:

Case 1 - Long user name

Current behavior

• Role dropdown is displayed incorrectly in cases of long user name and small screen resolution
  
  Expected behavior
• TBD - truncating?

Case 2 - Members ordering

Current behavior

• Members are not sorted on the BE, they are ordered by ID:
  
  Expected behavior
• TBD - sort them by role level and alphabetically?

Case 3 - FE error handling in case of adding an invalid user/BE text of error message

Current behavior

• The error isn't handled in the console on FE side:
  
  Expected behavior
• TBD - the error is handled, do we need to change the text on BE?