Generte the images in _astro

[wildfiremedia]

Body

Currently, when using <Image /> and compile on macOS, my site (SSR) will be deploy on Linux environment which may have low hardware resources. We could generate multiple image files without constantly relying on Sharp service for on-the-fly image transformation.

[ematipico]

Astro offers the API to create an external image service: https://docs.astro.build/en/reference/image-service-reference/#building-using-the-image-services-api