Fixing typo

src/app/screens/MapFeedScreen.js

@@ -29,7 +29,7 @@ export default function MapFeedScreen(props) {
 
   // console.log("location:  " + JSON.stringify(global.location))
   return (
-    (!global.location) ? (
+    (global.location) ? (
     <View style={styles.container}>
       <OpenStreetMap
         markers={markers}