Add article: "The Problem with .env Files & Why Polykey Is the Future"

[xrissoula]

Description:

This PR adds a new article titled “The Problem with .env Files & Why Polykey Is the Future” to the documentation.

The article covers:

• Why .env files are a security risk (plaintext storage, accidental commits, lack of version control).
• Common bad practices teams use to replace .env files (hardcoding, databases, third-party cloud services).
• How Polykey provides a secure, decentralized alternative for secrets management.
• A breakdown of how Polykey works and how it eliminates the need for .env files.

The article is located in: --> docs/how-to-guides/companies-and-teams/the-problem-with-env.md

Issues Fixed

• Fixes #...

Tasks

• 1. Write and format the .env article
• 2. Ensure markdown syntax is correct
• 3. Review and Revise

Final checklist

• Domain specific tests
• Full tests
• Updated inline-comment documentation
• Lint fixed
• Squash and rebased
• Sanity check the final build

[CMCDragonkai]

This is some crazy wild stuff!!

Let's just forget that this ever happened.