* Default to tick-based updates
This commit reintroduces code that was previously removed in favor of a
notify-based update trigger. It turned out that notify-based updates can
cause issues in larger repositories, so tick-based updates seemed like a
safer default.
https://github.com/extrawurst/gitui/issues/1444https://github.com/extrawurst/gitui/pull/1310
* Add FAQ entry for --watcher
* Remove --poll