Setup GitHub Actions for linting

[nvh95]

Which feature you want to improve?
GitHub Actions CI

What and why you want to improve that feature
GitHub Actions CI should run linting. So contributors know they need to enforce the pretiier

Potential bugs/ unexpected behaviors
None for now

How to implement the changes

• Update code inside .github/workflows.
• If we can update in an existing .yml file, we do not need to run npm ci again
• If npm run prettier fails, CI fails

Others
Do you have anything else you want to share about the improvement?

[nvh95]

Motivation for this issue: When reviewing code for #129

[nvh95]

https://stackoverflow.com/questions/65242830/in-a-github-actions-workflow-is-there-a-way-to-have-multiple-jobs-reuse-the-sam

[tigerabrodi]

@nvh95 seems like a good story to begin with mhm