LibWeb: Add definitions from '2.2.5 Requests' in the Fetch spec

Author: https://github.com/linusg
Commit: 7116a7d2bf
Pull-request: https://github.com/SerenityOS/serenity/pull/14577
Reviewed-by: https://github.com/awesomekling ✅

Userland/Libraries/LibWeb/CMakeLists.txt

@@ -122,6 +122,7 @@ set(SOURCES
     Fetch/Infrastructure/HTTP/Bodies.cpp
     Fetch/Infrastructure/HTTP/Headers.cpp
     Fetch/Infrastructure/HTTP/Methods.cpp
+    Fetch/Infrastructure/HTTP/Requests.cpp
     Fetch/Infrastructure/HTTP/Statuses.cpp
     FontCache.cpp
     Geometry/DOMRectList.cpp