LibWeb: Stub out Navigator.maxTouchPoints

Author: https://github.com/shannonbooth
Commit: 144e53a209
Pull-request: https://github.com/SerenityOS/serenity/pull/23935

Userland/Libraries/LibWeb/HTML/Navigator.idl

@@ -14,6 +14,9 @@ interface Navigator {
 
     // https://w3c.github.io/clipboard-apis/#navigator-interface
     [SecureContext, SameObject] readonly attribute Clipboard clipboard;
+
+    // https://w3c.github.io/pointerevents/#extensions-to-the-navigator-interface
+    readonly attribute long maxTouchPoints;
 };
 
 // NOTE: As NavigatorContentUtils, NavigatorCookies, NavigatorPlugins, and NavigatorAutomationInformation