fix dumb keybind for move down

src/flycam.rs

@@ -75,7 +75,7 @@ fn player_move(
                     KeyCode::A => velocity -= right,
                     KeyCode::D => velocity += right,
                     KeyCode::Space => velocity += Vec3::Y,
-                    KeyCode::LShift => velocity -= Vec3::Y,
+                    KeyCode::Delete => velocity -= Vec3::Y,
                     _ => (),
                 }
             }