Case C-824/19: Judgment of the Court (Second Chamber) of 21 October 2021 (request for a preliminary ruling from the Varhoven administrativen sad — Bulgaria) — TC, UB v Komisia za zashtita ot diskriminatsia, VA (Reference for a preliminary ruling — Social policy — Equal treatment in employment and occupation — Directive 2000/78/EC — Prohibition of discrimination on grounds of disability — Article 2(2)(a) — Article 4(1) — Article 5 — Charter of Fundamental Rights of the European Union — Articles 21 and 26 — United Nations Convention on the Rights of Persons with Disabilities — Duties of juror in criminal proceedings — Blind person — Total exclusion from participation in criminal proceedings)