Fix environment page in docs

[ammar92]

Changes

This PR fixes the environment section in the docs. The Makefile has been slightly modified for cross platform usage and the template file has been updated to use the new setting-docs.

Issue link

Closes #1815

Demo

Code Checklist

• All the commits in this PR are properly PGP-signed and verified;
• This PR only contains functionality relevant to the issue; tickets have been created for newly discovered issues.
• I have written unit tests for the changes or fixes I made.
• For any non-trivial functionality, I have added integration and/or end-to-end tests.
• I have performed a self-review of my code and refactored it to the best of my abilities.

Communication

• I have informed others of any required .env changes files if required and changed the .env-dist accordingly.
• I have made corresponding changes to the documentation, if necessary.

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Checklist for code reviewers:

Copy-paste the checklist from the docs/source/templates folder into your comment.

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Checklist for QA:

Copy-paste the checklist from the docs/source/templates folder into your comment.

[Donnype]

Works as expected locally 👍