Improved: permission management and app access restrictions (#263)

[amansinghbais]

Related Issues

Closes #263

Short Description and Why It's Useful

Improved the permission management and app access restriction for certain users.

Screenshots of Visual Changes before/after (If There Are Any)

IMPORTANT NOTICE - Remember to update CHANGELOG.md with description of your change

Contribution and Currently Important Rules Acceptance

• [x] I read and followed contribution rules