feat: lowered enemy turn speed

src/enemy.hpp

@@ -32,7 +32,7 @@ public:
     float get_update_interval() const;
 private:
     int const SHOTS_BEFORE_HIT{0};
-    float const TURN_SPEED{3.f};
+    float const TURN_SPEED{1.5f};
     float const HIT_ANGLE{.05f};
     float const MISS_ANGLE{.2f};