improve sample data user experience
Currently i get no feedback when sample data is uploaded or not.
Also every time i update query, i am asked to upload sample data again which is time consuming activity.
Even when i sample data from live stream, it still asks me to upload data from file.
"Ocassionally", when same data is pulled from live stream. I get a notification to download this data. Once this notification disappears, there is no way to get that file again