fix: treat ctrl+click as right-click on macOS

On macOS, ctrl+click opens the context menu (equivalent to right-click).
This change prevents drag from starting when ctrl is held during click,
matching the expected behavior.

Closes #498

Author: STRML

lib/DraggableCore.js

@@ -291,8 +291,8 @@ export default class DraggableCore extends React.Component<DraggableCoreProps> {
     // Make it possible to attach event handlers on top of this one.
     this.props.onMouseDown(e);
 
-    // Only accept left-clicks.
-    if (!this.props.allowAnyClick && typeof e.button === 'number' && e.button !== 0) return false;
+    // Only accept left-clicks. On macOS, ctrl+click is equivalent to right-click.
+    if (!this.props.allowAnyClick && ((typeof e.button === 'number' && e.button !== 0) || e.ctrlKey)) return false;
 
     // Get nodes. Be sure to grab relative document (could be iframed)
     const thisNode = this.findDOMNode();