LibCore: Move Stream-based sockets into the Core namespace

Author: https://github.com/timschumi
Commit: a96339b72b
Pull-request: https://github.com/SerenityOS/serenity/pull/17406
Reviewed-by: https://github.com/linusg

Userland/Libraries/LibWebSocket/Impl/WebSocketImplSerenity.h

@@ -26,7 +26,7 @@ public:
     virtual void discard_connection() override;
 
 private:
-    OwnPtr<Core::Stream::BufferedSocketBase> m_socket;
+    OwnPtr<Core::BufferedSocketBase> m_socket;
 };
 
 }