重新设计弹出组件的层次布局，非常驻窗口将置于顶部；新增变量控制水流图层的显示；完善历史数据面板的设计

src/app/OlMap/Controls/ScaleLine.tsx

@@ -35,7 +35,7 @@ const Scale: React.FC = () => {
   }, [map]);
 
   return (
-    <div className="absolute bottom-0 right-0 flex col-auto px-2 bg-white bg-opacity-70 text-black rounded-tl shadow-md text-sm">
+    <div className="absolute bottom-0 right-0 flex col-auto px-2 bg-white bg-opacity-70 text-black rounded-tl shadow-md text-sm z-1300">
       <div className="px-1">缩放: {zoomLevel.toFixed(1)}</div>
       <div className="px-1">
         坐标: {coordinates[0]}, {coordinates[1]}