## Summary of the Pull Request
This proposes a change to how Terminal will scroll in response to newly
generated output. The Terminal will scroll upon receiving new output if
the viewport is at the bottom of the scroll history and no selection is
active.
This spec also explores the possibility of making this response
configurable with a `snapOnOutput` profile setting. It also discusses
the possibility of adding a scroll lock keybinding action.
## PR Checklist
* [X] Spec for #980