Add Loading Indicator During Sketch-to-Art Transformation Process

[ashwinipawar10]

In the Sketch2Art application, when users upload a sketch and initiate the transformation process, there is no visual indication that the system is processing the sketch using machine learning algorithms. This can lead to confusion or frustration as users may think the application is not responding. To enhance the user experience, a loading indicator should be implemented, providing feedback while the sketch is being converted into art.