🌐 Add Japanese translation for Advanced - Custom Response (#2193)
Co-authored-by: T. Tokusumi <41147016+tokusumi@users.noreply.github.com>
Co-authored-by: Taki Komiyama <39375566+komtaki@users.noreply.github.com>
Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>
