Issue #410 and #411. User Access Behaviour Fixed

[rashmirai21]

Description

Fixes devtron-labs/devtron#411
This PR also fixes issue 2 in devtron-labs/devtron#410 partially.

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?

Toast messages on following actions has been tested:
User list

• Update existing user
• Create new user
• Delete user

Group list

• Update existing group
• Create new group
• Delete group

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