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/DevTools/HackStudio/LanguageServers/Shell/ConnectionFromClient.h

@@ -16,7 +16,7 @@ class ConnectionFromClient final : public LanguageServers::ConnectionFromClient
     C_OBJECT(ConnectionFromClient);
 
 private:
-    ConnectionFromClient(NonnullOwnPtr<Core::Stream::LocalSocket> socket)
+    ConnectionFromClient(NonnullOwnPtr<Core::LocalSocket> socket)
         : LanguageServers::ConnectionFromClient(move(socket))
     {
         m_autocomplete_engine = make<CodeComprehension::Shell::ShellComprehensionEngine>(m_filedb);