next.js

3dc2e672 - fix(next/image): add missing svg test refactor missing types (#65345)

fix(next/image): add missing svg test refactor missing types (#65345) The tests added in https://github.com/vercel/next.js/pull/46219 were never correctly testing the headers because `detectContentType()` is called first and only when we can't detect the type from the response body do we fallback to the `Content-Type` header. I also refactored some of the tests because the `ctx: any` type was causing some tests to not run when testing different configuration options. Closes NEXT-3321