Navigation arrows and shortcuts for item in focus.

Description

An item view, like updates or the item card, can easily take up most of a page on a small screen, making it difficult to see the other items in a board. Sometimes, I’m focused on working on item updates and would like to be able to navigate easily up and down items in a board without having to close the item view.
Implementing an up/down arrow and/or keyboard shortcuts would enable me to move between items much more conveniently.

What are you trying to achieve

Easier navigation between adjacent items on a board.