Update App.tsx

[Tirthshah3105]

I didn't use distinct count on timestamp because you’re essentially counting how many distinct timestamps appear, which isn't typically useful for visualizing time-series data. Since the timestamp field is being used as a row-pivot, it's already grouping data by each distinct timestamp without needing to aggregate it. You'd want the graph to display the actual time points rather than a count of those time points.

However, if you need to use "timestamp": "distinct count" for a specific purpose (such as counting the number of unique timestamps or events), feel free to include it, but it may not provide meaningful insights in a line chart that shows trends over time.