feat: Static menus

Menus cannot be sent via `bot.api` because they require an installed API transformer. This transformer is only installed during `bot.use(menu)`.

One way would be to directly provide the API transformer to be installed on `bot.api`, but this does not follow the intuitive pattern of the rest of the plugin.

Instead, it would be cool if we can have a statically rendered version of the menu (a menu range) that can be passed to the constructor of the menu. Whenever the menu is sent (the internal `Proxy` is accessed), this static menu is rendered and sent. It obviously may not depend on a context object, so we should throw an error if someone tries to use dynamic strings/dynamic ranges.

```ts
const menu = new Menu('id', {
static: new Menu.Range().text('go', ctx => ctx.reply('whee'))
})
```