refactor: 地图组件移动端适配调整

frontend/src/views/chart/components/ChartComponent.vue

@@ -368,10 +368,10 @@ export default {
     position: absolute;
     z-index: 999;
     left: 2%;
-    bottom: 5%;
+    bottom: 30px;
     box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
     text-align: center;
-    padding: 5px;
+    padding: 2px;
     border-radius: 5px
   }