feat: element alignments - snapping (#6256)

Co-authored-by: Ryan Di <ryan.weihao.di@gmail.com>
Co-authored-by: dwelle <luzar.david@gmail.com>

src/tests/move.test.tsx

@@ -84,7 +84,7 @@ describe("move element", () => {
     // select the second rectangles
     new Pointer("mouse").clickOn(rectB);
 
-    expect(renderInteractiveScene).toHaveBeenCalledTimes(21);
+    expect(renderInteractiveScene).toHaveBeenCalledTimes(24);
     expect(renderStaticScene).toHaveBeenCalledTimes(20);
     expect(h.state.selectionElement).toBeNull();
     expect(h.elements.length).toEqual(3);