update MessageMedia.fromUrl (#811)

* fix MessageMedia.fromUrl docs

* use content-type as fallback

* set filename based on url

* fix empty filename

* wrap expression in parentheses

* hotfix

* JSDoc fix

* fix for jsdog

* eslint gets retirement home

Co-authored-by: Rajeh Taher <rajeh@reforward.dev>
Co-authored-by: Aliyss Snow <33941859+Aliyss@users.noreply.github.com>

index.d.ts

@@ -692,6 +692,7 @@ declare namespace WAWebJS {
 
     export interface MediaFromURLOptions {
         client?: Client
+        filename?: string
         unsafeMime?: boolean
         reqOptions?: RequestInit
     }