Feature Request: Scheduled Maintenance Mode

[joeldeteves]

Is your feature request related to a problem? Please describe.
Currently, it doesn't seem possible to set a schedule for Maintenance Mode. This can result in unnecessary alerts during scheduled maintenance periods like when rebooting to install patches on the weekend.

Describe the solution you'd like
It should be possible to suppress all alerts during a scheduled maintenance Window, e.g. Sunday 3 AM - 5 AM

Describe alternatives you've considered
Per convo with @sadnub the workaround is to use a cronjob to disable maintenance mode via the API on a schedule

Additional context
Other RMM and monitoring solutions e.g. Zabbix provide the ability to set a Maintenance Window to avoid alerting during the scheduled maintenance period. It would be useful to have this feature in TRMM as well.