project_panel: Add Sticky Scroll (#33994)

Closes #7243

- Adds `top_slot_items` to `uniform_list` component to offset list
items.
- Adds `ToPosition` scroll strategy to `uniform_list` to scroll list to
specified index.
- Adds `sticky_items` component which can be used along with
`uniform_list` to add sticky functionality to any view that implements
uniform list.


https://github.com/user-attachments/assets/eb508fa4-167e-4595-911b-52651537284c

Release Notes:

- Added sticky scroll to the project panel, which keeps parent
directories visible while scrolling. This feature is enabled by default.
To disable it, toggle `sticky_scroll` in settings.
6efc5ecefeSmit Barmase committed on 7/7/2025, 3:02:42 AM· committed by GitHubparent2246b01
6 files changedLine totals unavailable