Can you make the life expansion vertical instead of horizontal?

When the life event increases, it would be difficult to shift right the the latest event. If it is vertical, user can scroll the mouse wheel or click End key on the keyboard to the latest event.

Start by locating the timeline rendering and layout entry points in the life repository, then inspect how new life events are positioned and how scrolling currently behaves. The change is complete when the timeline expands vertically, users can reach the latest event with the mouse wheel or End key, and existing timeline behavior remains usable.

Written by the indexing model from the issue text.