Bug: Hardcoded backend URL in the application

[ygowthamr]

Bug: Hardcoded backend URL in the application

Description

The application currently has the backend URL hardcoded as localhost:3000 in multiple locations. This design limits flexibility and requires manual changes in every instance if the backend URL needs to be updated. A centralized configuration file should be implemented to store the backend URL, allowing for easier management and updates.

Steps to Reproduce

1. Open the application codebase.
2. Search for instances of localhost:3000.
3. Note that the URL is repeated in multiple files, making updates cumbersome.

Expected Behavior

The application should reference a single configuration file containing the backend URL. If the URL needs to be changed, it can be updated in one place, and the change should reflect throughout the application.

Actual Behavior

The backend URL is hardcoded as localhost:3000 in multiple places, requiring manual changes in every instance when updates are necessary.

Additional Information

@Harshdev098 Give me labels like level3,gssoc extended and hacktoberfest.