Case C-947/19 P: Judgment of the Court (Eighth Chamber) of 4 March 2021 — Carmen Liaño Reig v Single Resolution Board (SRB) (Appeal — Economic and monetary union — Banking union — Recovery and resolution of credit institutions and investment firms — Single Resolution Mechanism for credit institutions and certain investment firms (SRM) — Resolution procedure — Adoption of a resolution scheme in respect of Banco Popular Español SA — Regulation (EU) No 806/2014 — Article 24 — Sale of business tool — Article 21 — Write-down and conversion of capital instruments — Tier 2 instruments — Action for annulment — Partial annulment — Not severable — Inadmissibility)