* add npm prettier dep and format script to .github folder
* initial work on prettier formatting test
* attempt index notation
* change name of .github job to be valid
* another use of index notation
this is getting overcomplicated
* Change job ID to `github-files-formatting` and chane the name to `.github Files Checks`
* Change job name to `.github Files Formatting`
* Update Makefile with .github module and `filter-out`s
* run prettier formatting as added in this PR
Motivation
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For me as a new contributor it is frustrating to submit a PR and it will always fail. Even worse: I have to wait for another contributor with more power to assign the label for me.
This will improve developer experience, as some of the labels can be assigned automatically based on changed files.
How to test
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1. Merge this PR
2. Submit a couple of PRs with changes in the respective directories
3. Labels should be automatically applied
4. "Enforce PR labels" github workflow will re-run when "Pull Request Labeler" completes
