[Feature] Search can't go more than one level

[anjola-adeuyi]

Great job to the team. @ohansemmanuel

While on the page trying to search for something or a key word, i noticed the word i was instrested in was at the sidebar nav menus but at that time i wanted to view it in a filtered mode as the search function presently, but on doing that, for the sub-menu that contains the exact word i was intrested in weren't captured while using the search because the search can't go more than one level.

Would be nice if the search can search deeper through the nav menu as well as the nav sub-menu for making this project and document easier for peeps to use.

While searching for variable in useState tab