MAPG-47 refactor GameController and its view

views/game.php

@@ -48,8 +48,7 @@
         </div>
     </div>
     <script>
-        var mapArea = <?= $bounds->calculateApproximateArea() ?>;
-        var guessMapBounds = <?= $bounds->toJson() ?>;
+        var mapBounds = <?= json_encode($bounds) ?>;
     </script>
     <script src="https://maps.googleapis.com/maps/api/js?key=<?= $_ENV['GOOGLE_MAPS_JS_API_KEY'] ?>"></script>
     <script src="static/js/mapguesser.js"></script>