Method closeAllSubWin

lib/modAssist_window_lib.js:470–476

* Safely close all sub windows

()

	 * Safely close all sub windows
	 */
	closeAllSubWin() {
		for ( const thisWin in this.win ) {
			if ( thisWin !== 'main' && this.isValid(thisWin) ) {
				this.win[thisWin].destroy()
			}
		}
	}

	closeAllMultiWin () {
		for ( const thisWin in this.multiWin ) {