Fixed typo in JS code in AlertOverride (#8043)

Changed the __webdriverPrompt to __webdriverPrompts in the window.prompt function.

Co-authored-by: David Burns <[email protected]>

java/client/src/com/thoughtworks/selenium/webdriven/commands/AlertOverride.java

@@ -88,7 +88,7 @@ public void replaceAlertMethod(WebDriver driver) {
         "  window.__webdriverPrompts = []; " +
         "  window.__webdriverNextPrompts = true; " +
         "  window.prompt = function(msg, def) { " +
-        "    window.__webdriverPrompt.push(msg || def); " +
+        "    window.__webdriverPrompts.push(msg || def); " +
         "    var res = window.__webdriverNextPrompt; " +
         "    window.__webdriverNextPrompt = true; " +
         "    return res; " +