feat: check leap year (index file)

src/pages/tools/time/index.ts

@@ -5,6 +5,7 @@ import { tool as hoursToDays } from './convert-hours-to-days/meta';
 import { tool as convertSecondsToTime } from './convert-seconds-to-time/meta';
 import { tool as convertTimetoSeconds } from './convert-time-to-seconds/meta';
 import { tool as truncateClockTime } from './truncate-clock-time/meta';
+import { tool as checkLeapYear } from './check-leap-years/meta';
 
 export const timeTools = [
   daysDoHours,
@@ -13,5 +14,6 @@ export const timeTools = [
   convertTimetoSeconds,
   truncateClockTime,
   timeBetweenDates,
-  timeCrontabGuru
+  timeCrontabGuru,
+  checkLeapYear
 ];