Notifications sending for agents after maintenance mode is switched off

[davew909]

Server Info (please complete the following information):

• OS: Ubuntu 20.04
• Browser: chrome
• RMM Version) :v0.16.0

Installation Method:

• [X ] Standard
• Docker

Agent Info (please complete the following information):

• Agent version (as shown in the 'Summary' tab of the agent from web UI): Agent v2.4.9
• Agent OS: Server 2016

Describe the bug
When placing a client on maintenance mode that has agents that have email and SMS alerts enabled you receive notifications once maintenance mode is switched off for the outages during the maintenance window.

To Reproduce
Steps to reproduce the behavior:

1. Enable Maintenance Mode for a site/client
2. Turn off an agent that is monitored (SMS/Email)
3. Turn the agent back on after the offline period
4. Disable maintenance mode
5. Receive SMS/Email about agent being off and back on again

Expected behavior

1. Enable Maintenance Mode for a site/client
2. Turn off an agent that is monitored (SMS/Email)
3. Turn the agent back on after the offline period
4. Disable maintenance mode
5. Receive no alerts because maintenance mode should have paused the monitoring

[wh1te909]

this has been fixed in e6225ad will be in next release. #1849