Many changes to try to improve reliability

src/utils/misc.ts

@@ -1,7 +1,3 @@
-export function buildISODate(date: string, time: string | null): string {
-  return new Date(date + 'T' + time || '00:00').toISOString();
-}
-
 export function getNewId(): string {
   return [...Array(20)]
     .map(() => Math.floor(Math.random() * 16).toString(16))