Generator produces incorrect code when the user specifies a nested path

[skulptur]

When generating a component directly inside /block or /general, or even with another level of nesting, it will always produce incorrect code due to relative import of '../AbstractComponent'

I suggest we use 'app/component/AbstractComponent' for the sake of simplicity.

Alternatively we could generate the proper path dynamically. If seng-generator doesn't support that, we could consider moving on to a different tool. For example Plop.