Fallback to nano if no editor is set (#517)
Fallback to nano if no editor is set (#517)

* Fallback to nano if no editor is set

* Add notepad fallback for windows

* Remove padding

* Use constant instead of var

ppot/hyper,zeit/hyper,derrickpelletier/hyper,martinvd/hyper,AlmirKadric/hyperterm,MartyGentillon/hyper,zeit/hyperterm,zeit/hyper,spncrgr/hyper,MartyGentillon/hyper,reslaurentii/hyper,AlmirKadric/hyperterm,ppot/hyper,bekher/hyperterm,martinvd/hyper,KunalKene1797/hyper,stefanivic/hyper,zeit/hyper,ekmartin/hyperterm,zeit/hyperterm,spncrgr/hyper,stefanivic/hyper,ekmartin/hyperterm,bekher/hyperterm,chabou/hyper,chabou/hyper,wilsontayar/hyper,chabou/hyper,KunalKene1797/hyper,reslaurentii/hyper,rickycodes/hyper,whitelynx/hyperterm,rickycodes/hyper,ppot/hyper,zeit/hyper,derrickpelletier/hyper,wilsontayar/hyper,whitelynx/hyperterm