Fix the database URI in config

[Satendra-SR]

#15

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Types of changes

• Bugfix (a change that fixes an issue)
• New feature (a change which adds functionality)

Short description of what this resolves:

This is more of a fixing issue related to loading env variables from the system.

Checklist:

• I have performed a self-review of my own code.
• The code follows the style guidelines of this project.
• The code changes are passing the CI checks
• I have documented my code wherever required.
• The changes require a change to the documentation.
• I have updated the documentation based on my changes.