FIX: Hotfixes epic bugathon 01 ISSUE: user auth issues

[vikramdevtron]

Description

User auth - manager access issues for adding groups and notification configs and assigning permission to other users

Fixes # (issue) #472
#473
#474
#475

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• assigning direct permission to user
• group created by manager, can view permission of group.
• notification slack config can be added by manager.

Checklist:

• The title of the PR states what changed and the related issues number (used for the release note).
• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have tested it for all user roles