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/2019/TrimString.js

@@ -0,0 +1,27 @@
+'use strict';
+
+var trimStart = require('string.prototype.trimstart');
+var trimEnd = require('string.prototype.trimend');
+
+var $TypeError = require('es-errors/type');
+
+var RequireObjectCoercible = require('./RequireObjectCoercible');
+var ToString = require('./ToString');
+
+// https://262.ecma-international.org/10.0/#sec-trimstring
+
+module.exports = function TrimString(string, where) {
+	var str = RequireObjectCoercible(string);
+	var S = ToString(str);
+	var T;
+	if (where === 'start') {
+		T = trimStart(S);
+	} else if (where === 'end') {
+		T = trimEnd(S);
+	} else if (where === 'start+end') {
+		T = trimStart(trimEnd(S));
+	} else {
+		throw new $TypeError('Assertion failed: invalid `where` value; must be "start", "end", or "start+end"');
+	}
+	return T;
+};