Fix the Cors problem in frontend/web requests

[ozankrkya]

🧱 Description

We used no-cors header with requests before, however, it doesn't allow to see the response from backend since it sends opaque responses. A configuration in backend should include web server to allowed origins in backend/config/settings.py.

To be reviewed by: @umitcan07

📋 Acceptance Criteria

• [x] Cors error is resolved.

[umitcan07]

We now respond with a header!

[ozankrkya]

We have resolved this issue by branching a cors branch, resolved it and merged to the develop branch. I am closing this issue.