Add prettier to repo

[jvanbruegge]

Makes formatting easier, as everyone uses a different style. Simply run npm run format and the code is formatted correctly

I can set that up if I know what your preferences are

[jvanbruegge]

E.g. I use

• 4 spaces
• semicolons
• space inside brackets when destructuring
• single quotemark strings

[ntilwalli]

Does it enforce rules like linting? (I've never used prettier)

[jvanbruegge]

No, it's just formatting, but automatic without you having to fix linting rules, so it's best to have both (linter for stuff like unused-vars and prettier for formatting)

[ntilwalli]

sounds good, your prefs are fine

[jvanbruegge]

which style? I can open a PR then

[ntilwalli]

I amended my comment above, your prefs are fine

[jvanbruegge]

I didn't see that one yet :)