新增危险品码头图层，更新

src/utils/map/Layer.js

@@ -471,7 +471,7 @@ export function addLayerByName(name,isShow,opacity){
                 token: '',
                 elevationInfo: {
                     "mode": "absolute-height",
-                    "offset": 1
+                    "offset": 0.1
                 }
             })
             break