Context menu and dragging issues fixes

This update resolves issues with the context menu not recognizing selected objects and fixes dragging color stops in depth/gradient layers.

Changes

• Fixed issue with context menu not recognizing selected objects sometimes.
• Fixed issue with dragging color stops in depth/gradient layer.
• Fixed usage of depth layer with many color stops.
• Improve usage of React exports with Next.js.
• Fixed Geometry.js error in code exports.
• Minor bug fixes.