test: fix chart setup

Author: sgratzl

src/__tests__/createChart.ts

@@ -34,7 +34,7 @@ export default function createChart<
   TYPE extends ChartType,
   DATA extends unknown[] = DefaultDataPoint<TYPE>,
   LABEL = string
->(config: ChartConfiguration<TYPE, DATA, LABEL>, width = 300, height = 300): ChartHelper<TYPE, DATA, LABEL> {
+  >(config: ChartConfiguration<TYPE, DATA, LABEL>, width = 800, height = 600): ChartHelper<TYPE, DATA, LABEL> {
   const canvas = document.createElement('canvas');
   canvas.width = width;
   canvas.height = height;