Replace `if (x) { addClass(y) } else { removeClass(y) }` with `toggleClass(y, x)`

[KyNorthstar]

These could be coalesced into one toggleClass

scripts/assets/v2/general/kt/src/org/bh/scripts/general/components/sidebar/SidebarController.kt

Lines 67 to 72 in 67e1680

	if (newIsShown) {
	defaultElementResponsibleForHidingAndShowingTheSidebar.addClass(sidebarShownClassName)
	}
	else {
	defaultElementResponsibleForHidingAndShowingTheSidebar.removeClass(sidebarShownClassName)
	}