Alert manager update

- Adds types to alert manager.
- Adds ability to show alert for when search results need to be updated.
- Removes input-manager.
- Adds error type to geolocation button alert.

@monfresh Ready for review and merge. Syncs up the changes in alert management to those added in https://github.com/smcgov/SMC-Connect/pull/49
I don't think we need this, or the `_showNotice` function below. I can't think of a good reason to ever show an alert after someone starts typing in an input field.