Find and focus the previous/next occurrences of a string on an ipynb notebook

[vimchun]

Hello, It would be very convenient to have commands to find and focus the previous/next occurences of a string on an ipynb notebook, or to integrate with the existing commands like editor.action.nextMatchFindAction.

see https://stackoverflow.com/questions/78567139/commands-to-find-previous-next-occurence-of-a-string-on-a-ipynb-notebook-on-vsco

+@starball5