Fix Control + click behavior on nodes

[steveruizok]

Related to #2877

Adds placeholder and utility hook implementations to address the issue of Control + click on a node not opening its context menu on Chrome and Safari.

• Adds a placeholder file useHandleUiEvent.tsx intended for handling Control + click events on nodes. This file currently contains comments outlining the planned implementation for differentiating between regular clicks and Control + clicks, and triggering the appropriate context menu.
• Introduces a new utility hook useEvent.tsx that provides a stable function identity for event handlers, allowing them to read the latest props/state. This implementation includes a detailed comment explaining its purpose, limitations, and a reference to the RFC for future migration.

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Name	Status	Preview	Updated (UTC)
examples	✅ Ready (Inspect)	Visit Preview	May 2, 2024 9:31am

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| Name | Status | Preview | Updated (UTC) | | :--- | :----- | :------ | :------ | | **tldraw-docs** | ⬜️ Ignored ([Inspect](https://vercel.com/tldraw/tldraw-docs/DggHubhxBCetuN8kz4Z28oWk3dAW)) | [Visit Preview](https://tldraw-docs-git-steveruizok-fix-ctrl-click-tldraw.vercel.app) | May 2, 2024 9:31am |