Is it possible to append a widget inside uhtml?

Woops, I just had a stupid type somewhere.
It works.

```
const grid = new Grid({
columns: ['Pokemon', 'URL'],
pagination: {
limit: 5,
server: {
url: (prev, page, limit) => `${prev}?limit=${limit}&offset=${page * limit}`
}
},
server: {
url: 'https://pokeapi.co/api/v2/pokemon',
then: data => data.results.map(pokemon => [
pokemon.name, ghtml(`<a href='${pokemon.url}'>Link to ${pokemon.name}</a>`)
]),
total: data => data.count
}
});

const table = document.createElement('div')
grid.render(table)
return this.html`<div>${table}</div>`
```