feat: Add support for Leaflet.VectorGrid

We should support [Leaflet.VectorGrid](https://github.com/Leaflet/Leaflet.VectorGrid).

Either by documenting a way to use the plugin (similar to [Leaflet.draw documentation](https://gugustinette.github.io/Nuxt-Leaflet/guide/leaflet-draw.html)) or providing Vue components.