Cleaned up network modules & added output descriptions

[AlexanderSehr]

Change

• Cleaned up network modules
  • Convert json(null) into null
  • Removed excess brackets
• added output descriptions

Type of Change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update (Wiki)

Checklist

• I'm sure there are no other open Pull Requests for the same update/change
• My corresponding pipelines / checks run clean and green without any errors or warnings
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (readme)
• I did format my code

[MariusStorhaug]

I just unlinked the issue as the issue is for all modules. Linking it and completing this PR would close the issue. Think we want to leave it open until all json('null) are swapped out with null.

[MariusStorhaug]

Another issue this is addressing (but should not automatically close) is: #238

[MariusStorhaug]

No issues with these changes. Approved.