✨ Jump Bar Overflow Accordion Effect

Description

The jump bar was not previously not handling overflow per #182, but was later fixed in #186, which was a quick fix to allow for the jump bar to be scrollable.

Xcode handles it's overflow a little differently with an accordion-like effect where it condenses each item down to an icon if necessary and when items are hovered over they are expanded.

This is a small detail, but we should be handling overflow this way as well.

Screenshots

CodeEdit currently

https://github.com/user-attachments/assets/066c1596-ad0c-451d-a719-8f7e0edd0c62

Target behavior

https://github.com/user-attachments/assets/7f961208-21a9-4291-ac8b-679577ac1c58