More opinionated getting started guide

[geekgonecrazy]

https://rocket.chat/docs/developer-guides/quick-start/

We should be more opinionated. Right now they read more as a few notes. Not enough to really help anyone get started.

We should maybe recommend using vscode(since much of the team uses this). We should also recommend some extensions they should include. Like eslint, git and others that might actually decrease the amount of things we would ask them to change after they get the PR opened.

RocketChat/Rocket.Chat#10586 | https://open.rocket.chat/channel/dev?msg=XWkxas5hJzaZqGgzd

Also we have this great deal included to let them debug with vscode 🔝 we should tell them how to use it.

[Faria1212]

With all the detailed docs we have now, we can close this issue. What do you think @geekgonecrazy