Enable word jump between cells

[dreamingbird88]

Summary

In current version, 'word jump', one of my most used actions, is only limit within a single cell. In order to search a word in other cells, I have to do it as regular web page: (1) jump out of the 'vim' mode, (2) search. The headache happens when I want to jump back: it takes me more time to locate the starting point before the jump.

There is a related discussion on
#27

The difference is this request only focuses on if we can do the 'word jump' in VIM mode BETWEEN cells.

Thanks for this project which makes me life on Jupyter much easier. I'm appreciated if anyone can enable this function. Let me know if I can help to make this happen. Thanks again.