feat: display feature status (#745)

* feat: display feature status

* fix: hook dep

* fix: react hooks dep

app/assets/javascripts/utils.ts

@@ -34,31 +34,6 @@ export function getPlatform(): Platform {
   return platformFromString(getPlatformString());
 }
 
-let sharedDateFormatter: Intl.DateTimeFormat;
-export function dateToLocalizedString(date: Date) {
-  if (typeof Intl !== 'undefined' && Intl.DateTimeFormat) {
-    if (!sharedDateFormatter) {
-      const locale =
-        navigator.languages && navigator.languages.length
-          ? navigator.languages[0]
-          : navigator.language;
-      sharedDateFormatter = new Intl.DateTimeFormat(locale, {
-        year: 'numeric',
-        month: 'numeric',
-        day: '2-digit',
-        hour: '2-digit',
-        minute: '2-digit',
-      });
-    }
-    return sharedDateFormatter.format(date);
-  } else {
-    // IE < 11, Safari <= 9.0.
-    // In English, this generates the string most similar to
-    // the toLocaleDateString() result above.
-    return date.toDateString() + ' ' + date.toLocaleTimeString();
-  }
-}
-
 export function isSameDay(dateA: Date, dateB: Date): boolean {
   return (
     dateA.getFullYear() === dateB.getFullYear() &&