Refactored Upload Data

[vasudev13]

I refactored the Upload Data Construct with few validations (Not rendering error messages as of now). Instead of using hard-coded options on select menu, we can use the following this.acceptedDatasetFormats = [ { type: "Select File Type", value: "null", }, { type: "Comma Seprated Values (CSV)", value: "csv", }, ]; This array can be fetched from server later on. Hope I can submit a PR for the above after the appropriate review and contribute more significantly to the project in future.

Thanks a lot.