Prototyping alert history

refs #4074
AlertSummary: Decouple components and use partials

refs #4078
AlertSummary: Add healing chart

refs #4076
AlertSummary: Basic styling

refs #4074
AlertSummary: Controller clean up

refs #4074
Merge branch 'feature/alert-summary-4074'

resolves #4074
resolves #4473