Case C-402/19: Judgment of the Court (First Chamber) of 30 September 2020 (request for a preliminary ruling from the Cour du travail de Liège — Belgium) — LM v Centre public d’action sociale de Seraing (Reference for a preliminary ruling — Area of freedom, security and justice — Directive 2008/115/CE — Return of illegally staying third-country nationals — Parent of an adult child suffering from a serious illness — Return decision — Judicial remedy — Automatic suspensory effect — Safeguards pending return — Basic needs — Articles 7, 19 and 47 of the Charter of Fundamental Rights of the European Union)