[react-transform] Support more component definitions & expand tests

[andrewiggins]

Add support for auto-transforming more ways to specify components: object methods, member assignments, export default components, components wrapped in HoCs like memo and forwardRef

Also expands the react transform test suite to generate test cases based on different combinations of syntaxes.

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: ac06c354783a7cfc119e204ae522b891796bed94

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

| Name | Type | | ------------------------------- | ----- | | @preact/signals-react-transform | Patch |

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[github-actions[bot]]

Size Change: +2.3 kB (+3%)

Total Size: 82.6 kB

Filename	Size	Change
packages/react-transform/dist/signals-*********.js	4.26 kB	+765 B (+22%)	🚨
packages/react-transform/dist/signals-transform.mjs	3.57 kB	+771 B (+28%)	🚨
packages/react-transform/dist/signals-transform.umd.js	4.37 kB	+766 B (+21%)	🚨

ℹ️ View Unchanged

| Filename | Size | | :--- | :---: | | `docs/dist/assets/client.********.js` | 46.9 kB | | `docs/dist/assets/index.********.js` | 833 B | | `docs/dist/assets/jsxRuntime.module.********.js` | 281 B | | `docs/dist/assets/preact.module.********.js` | 4.02 kB | | `docs/dist/assets/signals-core.module.********.js` | 1.46 kB | | `docs/dist/assets/signals.module.********.js` | 2.02 kB | | `docs/dist/assets/style.********.js` | 21 B | | `docs/dist/assets/style.********.css` | 1.21 kB | | `docs/dist/basic-********.js` | 244 B | | `docs/dist/demos-********.js` | 3.35 kB | | `docs/dist/nesting-********.js` | 1.13 kB | | `docs/dist/react-********.js` | 239 B | | `packages/core/dist/signals-core.js` | 1.54 kB | | `packages/core/dist/signals-core.mjs` | 1.56 kB | | `packages/preact/dist/signals.js` | 1.27 kB | | `packages/preact/dist/signals.mjs` | 1.22 kB | | `packages/react/dist/signals.js` | 1.55 kB | | `packages/react/dist/signals.mjs` | 1.55 kB |

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