feat: add Win11 icon

Signed-off-by: Jack Cherng <jfcherng@gmail.com>

disk_root/ventoy/ventoy.json

@@ -77,6 +77,14 @@
             "key": "Win10",
             "class": "windows_10"
         },
+        {
+            "key": "Win11",
+            "class": "windows_11"
+        },
+        {
+            "key": "windows_7",
+            "class": "windows_7"
+        },
         {
             "key": "windows_8",
             "class": "windows_8"
@@ -85,6 +93,10 @@
             "key": "windows_10",
             "class": "windows_10"
         },
+        {
+            "key": "windows_11",
+            "class": "windows_11"
+        },
         {
             "key": "WindowsXP",
             "class": "windows_xp"