Remove Luxon from codebase (#14448)

Fixes #14444 

We shouldn't have 2 libraries to manage dates, one is enough

packages/twenty-front/src/modules/settings/developers/utils/computeNewExpirationDate.ts

@@ -1,4 +1,4 @@
-import { DateTime } from 'luxon';
+import { differenceInDays, parseISO, addDays } from 'date-fns';
 
 export const computeNewExpirationDate = (
   expiresAt: string | null | undefined,
@@ -7,8 +7,8 @@ export const computeNewExpirationDate = (
   if (!expiresAt) {
     return null;
   }
-  const days = DateTime.fromISO(expiresAt).diff(DateTime.fromISO(createdAt), [
-    'days',
-  ]).days;
-  return DateTime.utc().plus({ days }).toISO();
+  const expirationDate = parseISO(expiresAt);
+  const creationDate = parseISO(createdAt);
+  const days = differenceInDays(expirationDate, creationDate);
+  return addDays(new Date(), days).toISOString();
 };

packages/twenty-front/src/modules/settings/developers/utils/formatExpiration.ts

@@ -1,16 +1,15 @@
 import { t } from '@lingui/core/macro';
 import { isNonEmptyString } from '@sniptt/guards';
-import { DateTime } from 'luxon';
+import { differenceInYears, parseISO } from 'date-fns';
 
 import { NEVER_EXPIRE_DELTA_IN_YEARS } from '@/settings/developers/constants/NeverExpireDeltaInYears';
 import { beautifyDateDiff } from '~/utils/date-utils';
 
 export const doesNeverExpire = (expiresAt: string) => {
-  const dateDiff = DateTime.fromISO(expiresAt).diff(DateTime.now(), [
-    'years',
-    'days',
-  ]);
-  return dateDiff.years > NEVER_EXPIRE_DELTA_IN_YEARS / 10;
+  const expirationDate = parseISO(expiresAt);
+  const now = new Date();
+  const yearsDiff = differenceInYears(expirationDate, now);
+  return yearsDiff > NEVER_EXPIRE_DELTA_IN_YEARS / 10;
 };
 
 export const isExpired = (expiresAt: string | null) => {