fix(MemberPositionDistribution): 恢复echarts的dataZoom滑块配置

将原本注释掉的数据缩放滑块配置重新启用，让图表支持横向滚动缩放查看数据

src/pages/components/MemberPositionDistribution.vue

@@ -238,22 +238,22 @@ export default {
             fontSize: 10
           }
         },
-        // dataZoom: [{
-        //   type: 'slider',
-        //   show: true,
-        //   xAxisIndex: 0,
-        //   height: 20,
-        //   bottom: 0,
-        //   borderColor: 'rgba(255, 255, 255, 0.1)',
-        //   backgroundColor: 'rgba(45, 42, 85, 0.8)',
-        //   fillerColor: 'rgba(167, 139, 250, 0.3)',
-        //   handleStyle: {
-        //     color: '#A78BFA'
-        //   },
-        //   labelStyle: {
-        //     color: 'rgba(255, 255, 255, 0.5)'
-        //   }
-        // }],
+        dataZoom: [{
+          type: 'slider',
+          show: true,
+          xAxisIndex: 0,
+          height: 20,
+          bottom: 0,
+          borderColor: 'rgba(255, 255, 255, 0.1)',
+          backgroundColor: 'rgba(45, 42, 85, 0.8)',
+          fillerColor: 'rgba(167, 139, 250, 0.3)',
+          handleStyle: {
+            color: '#A78BFA'
+          },
+          labelStyle: {
+            color: 'rgba(255, 255, 255, 0.5)'
+          }
+        }],
         series: [{
           type: 'bar',
           data: this.chartsData.position.data,