Added global gameplay screens and API hook

fixed routings to global game screen. Fixed navbar layouts on the screen. Updated api keys to use private key and added .env file. Configured useGlobalHook to use api from env variable.

src/components/layout/Screen.js

@@ -20,6 +20,10 @@ const Screen = ({ children, style, showBack = false }) => {
     GameSelectionScreen: "Games",
     PlayersScreen: "Players",
     ExpandedMapScreen: "Map View",
+    GlobalEventsScreen: "Global Events",
+    GlobalMapScreen: "Global Map",
+    GlobalCacheViewScreen: "Cache Details",
+    GlobalLeaderboardScreen: "Global Leaderboard",
   };
 
   //   State ----------------------