Fix grammar in Array.prototype.sort error documentation (mdn#43117)

Fix grammar in Array.prototype.sort error page

Author: putku45

files/en-us/web/javascript/reference/errors/array_sort_argument/index.md

@@ -5,7 +5,7 @@ page-type: javascript-error
 sidebar: jssidebar
 ---
 
-The JavaScript exception "invalid Array.prototype.sort argument" occurs when the argument of {{jsxref("Array.prototype.sort()")}} (and its related methods: {{jsxref("Array.prototype.toSorted()")}}, {{jsxref("TypedArray.prototype.sort()")}}, {{jsxref("TypedArray.prototype.toSorted()")}}) isn't either {{jsxref("undefined")}} or a function which compares its operands.
+The JavaScript exception "invalid Array.prototype.sort argument" occurs when the argument of {{jsxref("Array.prototype.sort()")}} (and its related methods: {{jsxref("Array.prototype.toSorted()")}}, {{jsxref("TypedArray.prototype.sort()")}}, {{jsxref("TypedArray.prototype.toSorted()")}}) isn't either {{jsxref("undefined")}} or a function that compares its operands.
 
 ## Message