Remove use of String.prototype.at

This fixes an issue in Konqueror and Falkon, where `String.prototype.at`
is not defined.

Also: Update examples

Author: corrideat

examples

@@ -1,6 +1,6 @@
 {
 	"name": "@exact-realty/lot",
-	"version": "0.0.20",
+	"version": "0.0.21",
 	"description": "Sandbox for isolating ECMAScript code",
 	"main": "dist/index.cjs",
 	"types": "dist/index.d.cts",

package-lock.json

@@ -210,13 +210,15 @@ const disableURLStaticMethods = () => {
 				['writable']: true,
 				['enumerable']: true,
 				['configurable']: true,
-				['value']: String.bind(null),
+				['value']: function () {
+					return '';
+				}.bind(null),
 			},
 			['revokeObjectURL']: {
 				['writable']: true,
 				['enumerable']: true,
 				['configurable']: true,
-				['value']: String.prototype.at.bind(''),
+				['value']: function () {}.bind(null),
 			},
 		});
 };