User should see the Redis limit on an Alert's notification text (on the Dashboard)

[elauria]

Currently Alerts in the Dashboard which exceed the REDIS_SMEMBER_COUNT display a message under the title: "This Alert exceeds current maximum limit of entities".

UI should indicate what the current limit is.

REDIS_SMEMBER_COUNT should be made available to the UI for this purpose.

[elauria]

While this is not necessary, it is nice to inform the users what the limit is, so they are more informed about the state of the alert and can decide better how to design their alerts.