fix: 减少地图上故障、降级、离线的点位圆点为4个

src/components/TongzhouTrafficMap.vue

@@ -210,7 +210,7 @@ export default {
       const normalStatusCount = 6;
       const abnormalStatusCount = 3;
       const chunkSize = Math.floor(remainingData.length / (normalStatusCount + abnormalStatusCount));
-      const maxAbnormalCount = 10;
+      const maxAbnormalCount = 4;
 
       this.statusIntersections = {
         "中心计划": remainingData.slice(0, 20),