refactor(defaults): centralitza constants de bullet, ship, enemy, hud i notifier

source/core/defaults.hpp

@@ -16,7 +16,9 @@
 #include "core/defaults/entities.hpp"
 #include "core/defaults/floating_score.hpp"
 #include "core/defaults/game.hpp"
+#include "core/defaults/hud.hpp"
 #include "core/defaults/math.hpp"
+#include "core/defaults/notifier.hpp"
 #include "core/defaults/palette.hpp"
 #include "core/defaults/physics.hpp"
 #include "core/defaults/rendering.hpp"