improvement: Support numbers with commas in them (#2636)

src/tests/charts.test.tsx

@@ -0,0 +1,13 @@
+import { tryParseSpreadsheet } from "../charts";
+
+describe("tryParseSpreadsheet", () => {
+  it("works for numbers with comma in them", () => {
+    const result = tryParseSpreadsheet(
+      `Week Index${"\t"}Users
+Week 1${"\t"}814
+Week 2${"\t"}10,301
+Week 3${"\t"}4,264`,
+    );
+    expect(result).toMatchSnapshot();
+  });
+});