fix docs formatting for ts defs (#12968)

docs/api/tray.md

@@ -250,7 +250,7 @@ to detect every individual click of the tray icon.
 
 This value is set to false by default.
 
-### `tray.getIgnoreDoubleClickEvents()` _macOS_
+#### `tray.getIgnoreDoubleClickEvents()` _macOS_
 
 Returns `Boolean` - Whether double click events will be ignored.