Separate client from server

[monuelo]

Description

We currently have two apps on this repo.

• The client, where the user inputs the commands that will be sent to the server to execute.
• The server, that handles the requests and runs the commands on bash

They're a little coupled and it doesn't give us so many benefits.

Expected solution:
These applications should run separately, to give us some new features:

• We can have many clients for one server.
• A client can choose a server to connect.
• The client will be scalable

If that issue is completed, maybe we could move the client to another repo.