Update misskey-js.api.md

packages/misskey-js/etc/misskey-js.api.md

@@ -29,6 +29,9 @@ type Ad = TODO_2;
 // @public (undocumented)
 type AdminInstanceMetadata = DetailedInstanceMetadata & {
     blockedHosts: string[];
+    app192IconUrl: string | null;
+    app512IconUrl: string | null;
+    manifestJsonOverride: string;
 };
 
 // @public (undocumented)