Change env variables for same build command across different environments

[satyam73]

Issue Description

We have to change env variables for same build command across different environments.

Expected Behavior

One build command can be used in any environment and we can use environment variable to check what environment the build has to be generated for.

Current Behavior

Currently we have different build command and env files for different environments, like:
yarn build:production for production
yarn build:staging for staging

Screenshots

n/a

Reproducibility

• This issue is reproducible
• This issue is not reproducible

Steps to Reproduce

n/a

Severity/Priority

• Critical
• High
• Medium
• Low

Additional Information

Checklist

• I have read and followed the project's code of conduct.
• I have searched for similar issues before creating this one.
• I have provided all the necessary information to understand and reproduce the issue.
• I am willing to contribute to the resolution of this issue.