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/LibIMAP/Client.h

@@ -60,7 +60,7 @@ public:
     Function<void(ResponseData&&)> unrequested_response_callback;
 
 private:
-    Client(StringView host, u16 port, NonnullOwnPtr<Core::Stream::Socket>);
+    Client(StringView host, u16 port, NonnullOwnPtr<Core::Socket>);
     void setup_callbacks();
 
     ErrorOr<void> on_ready_to_receive();
@@ -71,7 +71,7 @@ private:
     StringView m_host;
     u16 m_port;
 
-    NonnullOwnPtr<Core::Stream::Socket> m_socket;
+    NonnullOwnPtr<Core::Socket> m_socket;
     RefPtr<Promise<Empty>> m_connect_pending {};
 
     int m_current_command = 1;