Keadaan Kahar, Pandemi Covid-19 Serta Implikasinya Terhadap Keterlambatan Pemenuhan Prestasi Jual-Beli Apartemen (Kasus Jual Beli Apartemen The Canary) = Force Majeur, The Covid-19 Pandemic And Its Implications For Delays In Fulfilling Obligation In Apartment Purchase Agreements. (The case of selling and buying an apartment "The Canary")