Save current BZZZ config-ui state before CHORUS branding update

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Co-Authored-By: Claude <noreply@anthropic.com>

install/config-ui/node_modules/es-abstract/2023/DefaultTimeZone.js

@@ -0,0 +1,18 @@
+'use strict';
+
+var callBind = require('call-bind');
+
+var I402 = typeof Intl === 'undefined' ? null : Intl;
+var DateTimeFormat = I402 && I402.DateTimeFormat;
+var resolvedOptions = DateTimeFormat && callBind(DateTimeFormat.prototype.resolvedOptions);
+
+// https://262.ecma-international.org/14.0/#sec-defaulttimezone
+// https://tc39.es/ecma402/2023/#sup-defaulttimezone
+
+module.exports = function DefaultTimeZone() {
+	if (DateTimeFormat && resolvedOptions) {
+		return resolvedOptions(new DateTimeFormat()).timeZone;
+
+	}
+	return 'UTC';
+};