NetworkSettings+SpiceAgent: Update and add required unveil paths

Author: https://github.com/ne0ndrag0n
Commit: 323c403d43
Pull-request: https://github.com/SerenityOS/serenity/pull/15600
Reviewed-by: https://github.com/bgianfo ✅

Userland/Services/SpiceAgent/main.cpp

@@ -18,7 +18,7 @@ ErrorOr<int> serenity_main(Main::Arguments)
 
     TRY(Core::System::pledge("unix rpath wpath stdio sendfd recvfd"));
     TRY(Core::System::unveil(SPICE_DEVICE, "rw"sv));
-    TRY(Core::System::unveil("/tmp/portal/clipboard", "rw"));
+    TRY(Core::System::unveil("/tmp/session/%sid/portal/clipboard", "rw"));
     TRY(Core::System::unveil(nullptr, nullptr));
 
     int serial_port_fd = TRY(Core::System::open(SPICE_DEVICE, O_RDWR));