Bug: DisplayManagedNode should snap to grid on resize

**Describe the bug**

The [DisplayManagedNode](https://github.com/bengreenier/overlayed2/blob/master/packages/ux-core/src/lib/layout/display-managed-node.tsx#L100) should snap to the grid for resizing. Today, it only snaps for movement.

**To Reproduce**

Steps to reproduce the behavior:
1. Boot overlayed2
2. Resize the hello world node
3. Note that resizing does not snap to grid

**Expected behavior**

Grid snapping occurs.

**Screenshots**


**Configuration (please complete the following information):**

- Version: [`7a547ff`](https://github.com/bengreenier/overlayed2/commit/7a547ff16bc23c7f6a45597b70c48e18d40a6bb5)

Start in packages/ux-core/src/lib/layout/display-managed-node.tsx around line 100, where DisplayManagedNode handles resizing, and compare that path with the existing movement snapping behavior. Reproduce the issue by booting overlayed2 and resizing the hello world node. Done means resizing applies grid snapping as movement already does.

Written by the indexing model from the issue text.