fix: Xbox OS detection

It is better to detect Xbox devices as having the OS "Xbox".
Otherwise, they are detected as "Windows 10", making it difficult to
see the difference between Legacy Edge on Windows and the Xbox
browser.  (Karma (https://github.com/karma-runner/karma) only shows
the browser & OS on the status line.)

With this change, Xbox 360, Xbox One, Xbox X/S, and Xbox Series X/S
are all detected as OS "Xbox" with version "360", "One", etc.

Author: joeyparrish

src/ua-parser.js

@@ -719,6 +719,9 @@
 
         os : [[
 
+            // Xbox, consider this before other Windows-based devices
+            /(xbox);\s+xbox\s([^\);]+)/i,                                       // Microsoft Xbox (360, One, X, S, Series X, Series S)
+
             // Windows based
             /microsoft\s(windows)\s(vista|xp)/i                                 // Windows (iTunes)
             ], [NAME, VERSION], [

test/os-test.json

@@ -287,6 +287,42 @@
             "version" : "4"
         }
     },
+    {
+        "desc"    : "Xbox 360",
+        "ua"      : "Mozilla/5.0 (Windows NT 10.0; Win64; x64; Xbox; Xbox 360) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36",
+        "expect"  :
+        {
+            "name"    : "Xbox",
+            "version" : "360"
+        }
+    },
+    {
+        "desc"    : "Xbox One",
+        "ua"      : "Mozilla/5.0 (Windows NT 10.0; Win64; x64; Xbox; Xbox One; WebView/3.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.19041",
+        "expect"  :
+        {
+            "name"    : "Xbox",
+            "version" : "One"
+        }
+    },
+    {
+        "desc"    : "Xbox X",
+        "ua"      : "Mozilla/5.0 (Windows NT 10.0; Win64; x64; Xbox; Xbox X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.82 Safari/537.36 Edge/20.02",
+        "expect"  :
+        {
+            "name"    : "Xbox",
+            "version" : "X"
+        }
+    },
+    {
+        "desc"    : "Xbox Series X",
+        "ua"      : "Mozilla/5.0 (Windows NT 10.0; Win64; x64; Xbox; Xbox Series X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.82 Safari/537.36 Edge/20.02 ",
+        "expect"  :
+        {
+            "name"    : "Xbox",
+            "version" : "Series X"
+        }
+    },
     {
         "desc"    : "Mint",
         "ua"      : "",