chore: update .env defaults

Author: ShGKme

.env

@@ -1,12 +1,11 @@
 PORT=3000
 HOST=127.0.0.1
 SECRET=secret_key
-PUBLIC_URL=http://localhost:3000
+PUBLIC_URL=https://course-vue.javascript.ru
 CORS_ORIGIN=*
 
 # Admin key is used to protect some maintenance features; remove or set empty to disable
 # ADMIN_KEY=admin_key
 
 # Database refresh interval in CRON pattern; remove or set empty to disable
-# DB_REFRESH_CRON=* 15 * * * *
-
+DB_REFRESH_CRON=* * 1 * * *