Add Element component

[marklundin]

This PR adds the Element component for rendering 2D screen space UI elements

import inconsolata from "/fonts/inconsolata.ttf"

export function Text () {

  const { asset: font } = useFont(inconsolata);

  return (
    <Entity>
      <Screen screenSpace/>
      <Entity>
        <Element text="Hey" />
      </Entity>
    </Entity>
  )
}

• Introduced the Element component to allow entities to render UI elements in screen space.
• Implemented prop validation and component definition for the Element component.
• Updated index.ts to export the new Element component alongside existing components.

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/playcanvas/react/@playcanvas/react@173

commit: f08046e