Maps: Fix bug when opening attribution url by adding launch unveil

Author: https://github.com/bplaat
Commit: https://github.com/SerenityOS/serenity/commit/264782557e
Pull-request: https://github.com/SerenityOS/serenity/pull/21013
Reviewed-by: https://github.com/ADKaster ✅

Userland/Applications/Maps/main.cpp

@@ -25,6 +25,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 
     TRY(Core::System::unveil("/res", "r"));
     TRY(Core::System::unveil("/tmp/session/%sid/portal/config", "rw"));
+    TRY(Core::System::unveil("/tmp/session/%sid/portal/launch", "rw"));
     TRY(Core::System::unveil("/tmp/session/%sid/portal/request", "rw"));
     TRY(Core::System::unveil(nullptr, nullptr));