Please allow search in results

### Description

As of now we can search a string in a project but to narrow down the search it will be useful to allow search in result. Right now if we search then a search popup appears. We put the search criteria in it and it shows the result at the bottom of the window, In a panel. What I am requesting is that it will have one more icon at the left bar of the search panel. If we click on it, It will show a new search popup and if we put search criteria then it will search in related search results. that is search inside search or cascaded search. Notepad++ offers this feature from a long time.

### Use case/motivation

It will be vary useful if we can search inside the results

### Related issues

_No response_

### Are you willing to submit a pull request?

No

No files, tests, or entry points are identified in the issue. Start by locating NetBeans' existing project-search result panel and its search controls, then determine how a second query could be scoped to the displayed results. Done means the search panel offers the requested control and a follow-up query narrows the current results.

Written by the indexing model from the issue text.