Implement prettier shared config

[Sorin Sbarnea]

Prettier has few configurable options but we could look at prettier/prettier#5123 and publish our set and reuse it in our projects. The main benefit is that this should allow us to alter the config without spending a lot of time to make the change in each repo.

The reason why I mention this is because I recently found that by default it does not do wrapping for markdown. See prettier/prettier#5123