refactor: 视图样式配置项调整

frontend/src/views/chart/chart/chart.js

@@ -13,11 +13,11 @@ export const DEFAULT_SIZE = {
   barDefault: true,
   barWidth: 40,
   barGap: 0.4,
-  lineWidth: 1,
+  lineWidth: 2,
   lineType: 'solid',
   lineSymbol: 'circle',
   lineSymbolSize: 4,
-  lineSmooth: false,
+  lineSmooth: true,
   lineArea: false,
   pieInnerRadius: 0,
   pieOuterRadius: 80,