Submit challenge / File upload progress indicator

Hello Uxcel support team,

I've been enjoying using this platform and

I appreciate the seamless experience, but I have a suggestion that could enhance user experience.

I've noticed that when submitting challenges, there isn't a progress indicator to show how far along the upload is. It would be incredibly helpful if you could consider adding this feature. Having a progress bar or percentage displayed would keep users informed and make the process even smoother.

Thank you for considering this enhancement, and I look forward to seeing how your team continues to make the platform even better.