fix: adjust chart label font size for better visibility

src/components/chart/Chart.tsx

@@ -211,7 +211,7 @@ export default function Chart({
                 label: {
                   show: !!labelField,
                   position: 'inside',
-                  fontSize: size / 2.5,
+                  fontSize: size / 4,
                   formatter: (params: any) => data.list[params.dataIndex][labelField],
                 },
               }