I would like to enhance the user experience of the UpWindowAngular component by adding animations for opening and closing the modal. Currently, the modal appears and disappears abruptly, which can be jarring for users.

Describe the solution you'd like
I propose implementing smooth animations for the modal, such as fade-in and fade-out effects. This would provide a more visually appealing transition when the modal is opened and closed.

Additional Context:

• Animation Types:
  • Fade-in effect when the modal opens.
  • Fade-out effect when the modal closes.
• CSS Framework: If applicable, we could utilize a CSS animation library like Animate.css, or create custom animations using Angular's animation capabilities.
• Impact: This change will enhance the overall user experience and make the modal interactions feel more polished.

Examples:
You could look at existing modals in other libraries (e.g., Angular Material, Bootstrap) for reference on how animations can be implemented effectively.