Change public URL for backend

[gavlyukovskiy]

No description provided.

[Copilot]

Pull Request Overview

Updates the backend URL configuration for the frontend service in the production deployment to use the proper HTTPS domain instead of localhost.

• Changed BACKEND_URL from localhost to the production domain https://coursehub.hyf.dev/api
• Removed trailing whitespace in the development docker-compose file

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
docker-compose.yaml	Removed trailing whitespace
deployment/docker-compose.yaml	Updated BACKEND_URL to production domain with HTTPS

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