fix: option key was broken as a meta key

Bug was introduced in b6e4826e40

alt-tab-macos/logic/Keyboard.swift

@@ -6,6 +6,7 @@ enum KeyCode: UInt16 {
     case escape = 53
     case command = 55
     case capsLock = 57
+    case option = 58
     case control = 59
     case function = 63
     case leftArrow = 123

alt-tab-macos/logic/Preferences.swift

@@ -41,7 +41,7 @@ class Preferences {
         MacroPreference("❖ Windows 10", (2, 0, 0, .white, .clear))
     ])
     static var metaKeyMacro = MacroPreferenceHelper<(KeyCode, NSEvent.ModifierFlags)>([
-        MacroPreference("⌥ option", (.tab, .option)),
+        MacroPreference("⌥ option", (.option, .option)),
         MacroPreference("⌃ control", (.control, .control)),
         MacroPreference("⌘ command", (.command, .command)),
         MacroPreference("⇪ caps lock", (.capsLock, .capsLock)),