Fix scrolling on g g and G

[krassowski]

Closes #134

To add more context, we should make this change anyways, because otherwise scrolling would not work in the full windowing mode.

[github-actions]

👈 Launch a Binder on branch krassowski/jupyterlab-vim/scrolling-fix-for-lab-4.1

[lukashergt]

I've tried out the binder. gg and G working as expected, jumping to top/bottom cell respectively and the view jumps, too, i.e. the scrolling seems to be working now. Thanks for the speedy fix @krassowski!

[ianhi]

This does indeed fix the scrolling but I think it's doing something weird to selection state of the cell. When i do this I have to hit enter twice in order to get to cell edit (vim normal) mode. In contrast when in jupyter command mode if I move up a cell with j then it only takes one enter press to accomplish the same.

[ianhi]

I'd like to figure out the best way to get us into jupyter-command-mode with the scrolled to cell one enter press away from being in edit mode. I have one suggestion i added to the review but im not sure it's the best way. I wish there was an option in scrollToCell that allowed you choose whether to enter edit mode.

[ianhi]

thanks for the quick follow up fixes @krassowski !