feat: added a new MacBook Air and old MacBook Pro (14/16) icons

Kit/plugins/SystemKit.swift

@@ -506,9 +506,17 @@ public class SystemKit {
             }
         case .iMac:
             return NSImage(named: NSImage.Name("imac"))!
-        case .macbook, .macbookAir:
+        case .macbook:
             return NSImage(named: NSImage.Name("macbookAir"))!
+        case .macbookAir:
+            if year >= 2022 {
+                return NSImage(named: NSImage.Name("macbookAir"))!
+            }
+            return NSImage(named: NSImage.Name("macbookAir4thGen"))!
         case .macbookPro:
+            if year >= 2021 {
+                return NSImage(named: NSImage.Name("macbookPro5thGen"))!
+            }
             return NSImage(named: NSImage.Name("macbookPro"))!
         default:
             return NSImage(named: NSImage.Name("imacPro"))!

Stats/Supporting Files/Assets.xcassets/devices/macbookAir4thGen.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "filename" : "macbookAir.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Stats/Supporting Files/Assets.xcassets/devices/macbookPro5thGen.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "filename" : "macbookPro.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}