mac: improve numPad codes in KEY_MAPPINGS (#393)

* mac: improve numPad codes in KEY_MAPPINGS

* fix: format

Author: gorsat

src/os/macos/mod.rs

@@ -82,23 +82,23 @@ static KEY_MAPPINGS: [Key; 128] = [
     /* 3e */ Key::RightCtrl,
     /* 3f */ Key::Unknown, // Function
     /* 40 */ Key::Unknown, // F17
-    /* 41 */ Key::Unknown, // Decimal
+    /* 41 */ Key::NumPadDot, // Decimal
     /* 42 */ Key::Unknown,
-    /* 43 */ Key::Unknown, // Multiply
+    /* 43 */ Key::NumPadAsterisk, // Multiply
     /* 44 */ Key::Unknown,
-    /* 45 */ Key::Unknown, // Add
+    /* 45 */ Key::NumPadPlus, // Add
     /* 46 */ Key::Unknown,
     /* 47 */ Key::NumLock, // Really KeypadClear...
     /* 48 */ Key::Unknown, // VolumeUp
     /* 49 */ Key::Unknown, // VolumeDown
     /* 4a */ Key::Unknown, // Mute
-    /* 4b */ Key::Unknown,
-    /* 4c */ Key::Enter,
+    /* 4b */ Key::NumPadSlash, // Divide
+    /* 4c */ Key::NumPadEnter, // Enter
     /* 4d */ Key::Unknown,
-    /* 4e */ Key::Unknown, // Subtract
+    /* 4e */ Key::NumPadMinus, // Subtract
     /* 4f */ Key::Unknown, // F18
     /* 50 */ Key::Unknown, // F19
-    /* 51 */ Key::Equal,
+    /* 51 */ Key::Equal, // Equal
     /* 52 */ Key::NumPad0,
     /* 53 */ Key::NumPad1,
     /* 54 */ Key::NumPad2,