Contributors nice-to-have list

[rozzilla]

Hey mates! 👋🏼 After a nice chat with @simonplend, we discussed a few points that can be nice to have, especially for those who want to contribute to the project.

I share them here:

• roadmap of the next features
• recommended best practices to contribute on the related page
• recommended setup (f.e. plugins/code-formatter/etc.) for the most common IDEs
• typescript types definition in the repo

Feel free to share your feedback about it 😉