Case C-508/19: Judgment of the Court (Grand Chamber) of 22 March 2022 (request for a preliminary ruling from the Sąd Najwyższy — Poland) — M.F. v J.M. (Reference for a preliminary ruling — Article 267 TFEU — Interpretation sought by the referring court necessary to enable it to give judgment — Concept — Disciplinary proceedings brought against a judge of an ordinary court — Designation of the disciplinary court having jurisdiction to hear those proceedings by the President of the Disciplinary Chamber of the Sąd Najwyższy (Supreme Court, Poland) — Civil action for a declaration that a service relationship does not exist between the President of that disciplinary chamber and the Supreme Court — Lack of jurisdiction of the referring court to review the validity of the appointment of a Supreme Court judge and inadmissibility of such an action under national law — Inadmissibility of the request for a preliminary ruling)