Add pagination to Timeline to prevent system crash

We've had multiple instances where a user is browsing devices and happens upon a timeline where the agent is going on and off multiple times due to a network change a customer has made. 

The problem is caused because the timeline is so large and because the platform does not paginate the results which can take down the control server knocking everyone offline.

It would be nice to dynamically add more data as the user scrolls when the results are very large.