Declare game.teleport as a bool instead of an int

This should affect nothing, but it's a bit confusing to have it declared
an int. Everywhere in the code treats it as a bool anyway.

desktop_version/src/Game.h

@@ -240,7 +240,8 @@ public:
     int deathseq, lifeseq;
 
     int trinkets(), crewmates();
-    int savepoint, teleport, teleportxpos;
+    int savepoint, teleportxpos;
+    bool teleport;
     int edteleportent;
     bool completestop;