Activity timeline refactoring followup (#5835)

Following https://github.com/twentyhq/twenty/pull/5697, addressing
review

packages/twenty-front/src/utils/format/formatDate.ts

@@ -0,0 +1,26 @@
+import { parseDate } from '~/utils/date-utils';
+
+export const formatToHumanReadableMonth = (date: Date | string) => {
+  const parsedJSDate = parseDate(date).toJSDate();
+
+  return new Intl.DateTimeFormat(undefined, {
+    month: 'short',
+  }).format(parsedJSDate);
+};
+
+export const formatToHumanReadableDay = (date: Date | string) => {
+  const parsedJSDate = parseDate(date).toJSDate();
+
+  return new Intl.DateTimeFormat(undefined, {
+    day: 'numeric',
+  }).format(parsedJSDate);
+};
+
+export const formatToHumanReadableTime = (date: Date | string) => {
+  const parsedJSDate = parseDate(date).toJSDate();
+
+  return new Intl.DateTimeFormat(undefined, {
+    hour: 'numeric',
+    minute: 'numeric',
+  }).format(parsedJSDate);
+};