Clear clippy warnings

renrs-gui/src/lib.rs

@@ -163,10 +163,10 @@ impl App {
             }
 
             let Vector2f { x, y } = shape.position();
-            if x >= WIDTH - SIZE || x < 0.0 {
+            if !(0.0..WIDTH - SIZE).contains(&x) {
                 velocity.x *= -1.0;
             }
-            if y >= HEIGHT - SIZE || y < 0.0 {
+            if !(0.0..HEIGHT - SIZE).contains(&y) {
                 velocity.y *= -1.0;
             }
             shape.set_position(Vector2f::new(x + velocity.x, y + velocity.y));