docs(keyboard): document Meta key aliases and cross-platform usage

Update keyboard documentation to explain the Meta/Super key mapping:
- Key.Meta, Key.LeftMeta, Key.RightMeta as aliases
- Cross-platform behavior (Command/Windows/Meta)
- Update TIPS.md example to use Key.LeftSuper

Author: johnlindquist

TIPS.md

@@ -294,7 +294,8 @@ await hide()
 // but you can import that package directly (or another similar package) if you prefer
 let info = await getActiveAppInfo()
 if (info.bundleIdentifier === "com.google.Chrome"){
-  await keyboard.pressKey(Key.Meta, Key.T)
-  await keyboard.releaseKey(Key.Meta, Key.T)
+  // Key.Meta, Key.LeftSuper, and Key.RightSuper all map to Command (macOS) / Windows key / Meta (Linux)
+  await keyboard.pressKey(Key.LeftSuper, Key.T)
+  await keyboard.releaseKey(Key.LeftSuper, Key.T)
 }
 ```

orientation/keyboard.md

@@ -218,6 +218,19 @@ await keyboard.tap(Key.LeftSuper, Key.C)
 await keyboard.tap(Key.LeftSuper, Key.V)
 ```
 
+### Modifier Key Aliases
+
+The "super" key maps to different physical keys across platforms:
+- **macOS**: Command key
+- **Windows**: Windows key
+- **Linux**: Meta/Super key
+
+Available Key enum values for this:
+- `Key.LeftSuper` / `Key.RightSuper` - Original names
+- `Key.Meta` / `Key.LeftMeta` / `Key.RightMeta` - Aliases for discoverability
+
+All of these map to `'command'` which robotjs uses cross-platform.
+
 ### Advanced Key Control
 ```typescript
 // Hold shift while typing