Settings Screen - Githubissues

Create a settings screen where users can update and save their preferences.

Requires: Small input component, YAML lib

Def.: A :settings view, a rendering component (container), a state field (I think opts is working for now), a YAML lib and a startup routine.

Before reading flags, seg should stat ~/.seg/config.yml (in the future, this path can be an env var)
- If a file was found, seg should read it onto opts
opts are then overridden by command-line args
Pressing Alt+S (or something) switches to :settings
- Pressing Esc returns to :home
- Pressing Enter triggers an input for changing the value
- Pressing Enter validates value, updates and saves settings file

ghalestrilo / seg