chore: run prettier with trailing comma all

[adamaltman]

What/Why/How?

I ran npm run prettier before I opened my pull request #786, but I realized I could not commit the prettier changes to that PR because there are so many changes to so many files. I also noticed that we use a lot of trailing commas which were adjusted by prettier.

I adjusted the prettier config to have all for trailing commas. I'm not sure if that is correct or not, but either way, shouldn't we:

• run prettier and commit, such as I've done in this PR
• add a GitHub action to run prettier with the check flag: https://prettier.io/docs/en/cli.html#--check to prevent deviations so we don't end up with such a big difference?

Check yourself

• Code is linted

Security

• Security impact of change has been considered
• Code follows company security practices and guidelines

[github-actions]

Coverage report

❌ An unexpected error occurred. For more details, check console

Error: The process '/usr/local/bin/npm' failed with exit code 1

St.❔	Category	Percentage	Covered / Total
🟡	Statements	67.87%	2830/4170
🟡	Branches	61%	1561/2559
🔴	Functions	59.19%	451/762
🟡	Lines	67.66%	2624/3878

Test suite run failed

Failed tests: 0/426. Failed suites: 0/75.

Report generated by 🧪jest coverage report action from f617fac

[adamaltman]

Jest: "packages/cli/" coverage threshold for lines (39%) not met: 38.75%

This is purely due to formatting where there are additional lines added from prettier.

[tatomyr]

I like the idea. I'll check if there're no substantial conflicts with other active branches and will prepare this for merging.

[tatomyr]

I'd like this to have been finished firstly, since it contains a lot of changes. I'll try to do it as soon as possible.

[adamaltman]

@tatomyr also it would be good if someone wrote the github action to run the prettier --check before this would be merged. This already has conflicts and is likely to be easier to produce a new PR at the time -- I only changed the config file (1 line), ran prettier, and git commit. We can redo that after the lint is renamed to styleguide.