[BUG] Splatted props is not defined / do not work

When trying to splat props, it doesn't appear to be available in the output:

```tsx
import { Component } from "@geajs/core";
import type { JSX } from "@geajs/core/jsx-runtime";

export type FooButtonProps = JSX.IntrinsicElements["button"];

export class FooButton extends Component {
template({ children, class: cls, ...props }: FooButtonProps) {
console.log(props);

return (

{children}

);
}
}

// throws
// Uncaught ReferenceError: props is not defined
```

-----

Furthermore, even if we don't `console.log(props)`, the splatted props seem to have no effect:

```tsx
import { Component } from "@geajs/core";
import type { JSX } from "@geajs/core/jsx-runtime";

export type FooButtonProps = JSX.IntrinsicElements["button"];

export class FooButton extends Component {
template({ children, class: cls, ...props }: FooButtonProps) {
return (

{children}

);
}
}

// usage

console.log("clicked!")} /> // nothing happens when clicked
```

Clicking the button has no effect at all. It only works if we manually pass the `onClick` down to ``:

```tsx
import { Component } from "@geajs/core";
import type { JSX } from "@geajs/core/jsx-runtime";

export type FooButtonProps = JSX.IntrinsicElements["button"];

export class FooButton extends Component {
template({ children, class: cls, onClick }: FooButtonProps) {
return (

{children}

);
}
}

// usage

console.log("clicked!")} /> // logs "clicked!" when clicked
```

No source files or tests are named in the issue. Reproduce both TSX examples, then trace the compile-time JSX transform and the generated handling of object-spread props and event handlers; done means splatted props are available without a ReferenceError and forwarded handlers respond to clicks.

Written by the indexing model from the issue text.