Tracking: Use BFLAG_LIT instead of BFLAG_VISIBLE (like cursor and drawing logic)

Source/cursor.cpp

@@ -335,7 +335,7 @@ void CheckCursMove()
 			const auto &monster = Monsters[pcursmonst];
 			if (monster._mDelFlag || monster._mhitpoints >> 6 <= 0
 			    || (monster._mFlags & MFLAG_HIDDEN) != 0
-			    || ((dFlags[monster.position.tile.x][monster.position.tile.y] & BFLAG_VISIBLE) == 0)) {
+			    || ((dFlags[monster.position.tile.x][monster.position.tile.y] & BFLAG_LIT) == 0)) {
 				pcursmonst = -1;
 			}
 		} else if (pcursobj != -1) {
@@ -345,7 +345,7 @@ void CheckCursMove()
 			auto &targetPlayer = Players[pcursplr];
 			if (targetPlayer._pmode == PM_DEATH || targetPlayer._pmode == PM_QUIT || !targetPlayer.plractive
 			    || currlevel != targetPlayer.plrlevel || targetPlayer._pHitPoints >> 6 <= 0
-			    || ((dFlags[targetPlayer.position.tile.x][targetPlayer.position.tile.y] & BFLAG_VISIBLE) == 0))
+			    || ((dFlags[targetPlayer.position.tile.x][targetPlayer.position.tile.y] & BFLAG_LIT) == 0))
 				pcursplr = -1;
 		}