右下显示错误修复

src/view/Map.js

@@ -363,7 +363,7 @@ class MyMap extends Component {
 				boxZoom={false}
 			>
 				<AttributionControl
-					prefix={+window.EDITOR_NAME+" v"+PACKAGE.version}
+					prefix={window.EDITOR_NAME+" v"+PACKAGE.version}
 				/>
 
 				<ScaleControl