fix: tidy namespace Scenes::/Info:: PascalCase i locals UPPER_CASE

source/game/scenes/frame_animator.cpp

@@ -2,7 +2,7 @@
 
 #include <algorithm>
 
-namespace scenes {
+namespace Scenes {
 
     FrameAnimator::FrameAnimator(int num_frames, int frame_ms, bool loop)
         : num_frames_(std::max(1, num_frames)),
@@ -35,4 +35,4 @@ namespace scenes {
         finished_ = false;
     }
 
-}  // namespace scenes
+}  // namespace Scenes