Re-order use statements, prefer crate mods first

src/physics.rs

@@ -1,10 +1,10 @@
 //! Custom physics items
 //! TODO: Refactor in terms of Rapier2D, *or* implement colliders and remove it.
 
-use bevy::prelude::*;
-
 use crate::WorldSize;
 
+use bevy::prelude::*;
+
 #[derive(Component)]
 pub(crate) struct Position(pub(crate) bevy::math::Vec2);