Updated tests and made fixes for distance_map

Author: vmonakhov

src/pages/DistanceMap/map.js

@@ -204,12 +204,12 @@ class MapAreas extends PureComponent {
   render() {
     const { location, user, loading } = this.props;
 
-    const { mainDictionary } = location.state;
-
     if (!location.state) {
       return null;
     }
 
+    const { mainDictionary } = location.state;
+
     if (loading) {
       return <Placeholder />;
     }

src/pages/DistanceMap/selectorLangGroup.js

@@ -168,7 +168,7 @@ const SelectorLangGroup = ((props) => {
   useEffect(() => {
     if (!location.state) {
       navigate("/distance_map");
-      return null;
+      return;
     }
   }, [location, navigate]);