Implement scroll in commit message box

[heiskane]

It changes the following:

• Scrolls the text in the commit message box

As discussed in https://github.com/extrawurst/gitui/pull/1333 this implements a scroll in commit message box.

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]

@heiskane how is it going - need support? feel free to join the discord 👍

[heiskane]

@heiskane how is it going - need support? feel free to join the discord 👍

I got the scroll mostly working but for some reason you can add unlimited amount of spaces without it wrapping to the next line. I think that should be the last problem to solve to get it working but I haven't looked at it too closely yet. As a side note I would like to add a zero width space before the cursor break it from the actual word for proper wrapping but the tui crate is not handling it correctly.

[extrawurst]

@heiskane are you still on this?

[heiskane]

@extrawurst I have been a bit busy and haven't really been able to make progress on this one. I do want to keep working on this but am unsure if i have the time right now.

[stale[bot]]

This issue has been automatically marked as stale because it has not had any activity half a year. It will be closed in 14 days if no further activity occurs. Thank you for your contributions.