Fix center_camera

Zoom distance was being calculated incorrectly

src/scene.cpp

@@ -93,7 +93,7 @@ void center_camera(Vec3<f32> const& point, f32 const radius)
 {
     constexpr f32 pad_scale{1.2f};
     state.camera.pivot.position = point;
-    state.zoom.target.distance = radius * pad_scale / std::asin(state.view.fov_y * 0.5);
+    state.zoom.target.distance = radius * pad_scale / std::sin(state.view.fov_y * 0.5);
     state.pan.target.offset = {};
 }