Cloudflare Provider - Domain Validation

[amplitudesxd]

The Cloudflare provider for Nuxt Image currently forces validateDomains: false without any way to configure it. This means all images get optimized regardless of their domain, which isn't ideal for every use case.

Being able to toggle validateDomains would let you choose which domains get optimized through Cloudflare's Image Optimization service. For example, optimizing local assets while having external domains disabled within Cloudflare Image Optimization settings.