Servicetemplategroups - we can add "Agent Templates"

[kbilev]

Describe the bug
In a Servicetemplategroup we can add Services of type "Agent Services"
If we apply the Servicetemplategroup to a host/hostgroup, the service is added to the host(s), but created as a "Generic Service" (service_type = 1)

To Reproduce
Steps to reproduce the behavior:

1. Create ServiceTemplategroup
2. Add a service with type "Agent Service"
3. Apply servicetemplategroup to host
4. Service added as generic service

Expected behavior
The service should be created as agent Service
Or we should not be able to select agent services

Versions

• openITCOCKPIT Server Version: 4.8.1

Additional context
Found as I wanted to add "Agent Service - Memory Usage" with other warning and critical values to hosts.