We need to improve (create a new one) panel to be able to:
- Display number of currently failed checks in the system if the STT is enabled
- 0 (green) if the total checks == 0
- otherwise 2 / 0 / 1 (red, orange, blue) if total checks > 0
- Display a customizable text message if STT is disabled
- make it possible to edit the text message via a property in Panel options
- display the following message "Security Threat Tool is disabled. Check PMM Settings"
NB: Won't do -> `make it possible to edit the text message via a property in Panel options`, because we need a link to another panel, and currently the config panel allows to pass only strings, not HTML