fix(Cron Parser): handle aws, next executions and TZ

Handle AWS Cron syntax and distinguishe from standard syntax (fix #855)
Add show crontab next 5 execution times (taken from #1283)
Add Timezone handling: fix #261

src/tools/crontab-generator/index.ts

@@ -20,6 +20,7 @@ export const tool = defineTool({
     'day',
     'minute',
     'second',
+    'aws',
   ],
   component: () => import('./crontab-generator.vue'),
   icon: Alarm,