Enhanced search function

**Is your feature request related to a problem? Please describe.**
I have many folders. The current search function only supports search items, and the search results do not show folders.
I know that sorting rules can be set, but when there are many folders, it takes a lot of time to browse each time. Can the search function be enhanced to display folders in the search results?

**Describe the solution you'd like**
In the search results, support for displaying matching folders.

**Describe alternatives you've considered**
The search results display matching items first, and then folders.
The entry comes first and the folder goes to the bottom.

No file or test is named in the issue. Start by locating the existing search implementation and result ordering in the Kotlin Android project, then check how folders are represented. Done means matching folders appear in search results after matching items.

Written by the indexing model from the issue text.