add login/sign-up page with dark/light mode

node_modules/es-abstract/helpers/forEach.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = function forEach(array, callback) {
+	for (var i = 0; i < array.length; i += 1) {
+		callback(array[i], i, array); // eslint-disable-line callback-return
+	}
+};