Restoring minimap

[markoradak]

First off - is there any reason behind removing/restoring minimap when Zen is toggled (unless minimap option is checked) that I'm overseeing? I think it would make perfect sense to do it with plain CSS in combination with data-attribute (something like data-zen-minimap="true||false").

The reason for proposed change is that currently I sometimes get multiple minimaps restored, instead of the only one that was removed in the first place. I don't really know exactly when it occurs, but from what I encountered, it seems that quickly toggling Zen on and off causes the issue (which does make sense). Whenever it happens I need to restart Atom completely, as just refreshing it doesn't help.

If you're up for a change, I can submit PR fixing the issue as proposed above.

[braver]

If there is a bug with minimap toggling I'll accept a PR (the code does look a bit wonky, not sure if that's still compatible), but I'm not experiencing any issues and I don't really have the time to try and find out if there is anything wrong. It's been a while of course (sorry about that) but if anyone wants to review this and submit a fix I'll pull it.