WIP - Use upstream scrollbar instead of custom one

[MichaelAug]

It changes the following:

• Use upstream scrollbar instead of custom implementation

Here is an example of new scrollbar:

I followed the checklist:

• I added unittests
• I ran make check without errors
• I tested the overall application
• I added an appropriate item to the changelog

[extrawurst]

This shows that we are not doing a good job of using our own abstraction everywhere, as most places draw scrollbars themselfs by directly calling draw_scrollbar.

Depending on how much time you have we should clean that up. Minimum is to also make draw_scrollbar use the ratatui widget.

Ideally though we also migrate all places directly calling draw_scrollbar to use our VerticalScroll abstraction.

Marking as draft while its WIP

[MichaelAug]

yeah i've got time :) I can refactor VerticalScroll and HorizontalScroll and then replace all usages of draw_scrollbar with one of those.

Do you want this work done as part of #2155 or should we make a new issue? Do you have a preference for how this work should be split up? A single giant PR or split it up into multiple?

[extrawurst]

Ideally we open a new PR with just the migration to our existing two types and then we followup with this

[MichaelAug]

Can do! Will close this PR for now then