Fix close tab icon
Fix close tab icon

This closes #449

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