refactor(pane-layout): Always recalculate layout. Temporarily get by non standard layouts. For instance, if you created your own layout with default atom hotkeys and there are 3 panes total. Previously trying to execute a 3 column layout would fail, etc.
fix(pane-layout): Update 4/5 column layouts so they are not effected by custom layouts created by a user in which the panes exceeded 4.