Dotnet format

[Ceredron]

Description

As a developer, I like to have my code properly formatted. But I do not like putting any effort into it. I also do not like having my pipeline stop because of a missing space somewhere so therefore run it as an independent workflow rather than as part of the build.

For guide on how to make it run automatically in IDE:
https://learn.microsoft.com/en-us/community/content/how-to-enforce-dotnet-format-using-editorconfig-github-actions#3---formatting-your-code-locally

Related Issue(s)

• Automatisk bygg/deploy til AT/TT/PROD #149

Verification

• Your code builds clean without any errors or warnings
• Manual testing done (required)
• Relevant automated test added (if you find this hard, leave it and we'll help out)
• All tests run green

Documentation

• User documentation is updated with a separate linked PR in altinn-studio-docs. (if applicable)