perf: 优化饼图展示

src/packages/chartConfiguration/echarts/index.ts

@@ -1,2 +1,3 @@
 export * from './axis'
-export * from './line'
+export * from './line'
+export * from './label'

src/packages/chartConfiguration/echarts/label.ts

@@ -0,0 +1,7 @@
+export const labelConfig = {
+  position: [
+    { label: '外侧', value: 'outside' },
+    { label: '内部', value: 'inside' },
+    { label: '中心', value: 'center' }
+  ]
+}