When an issue key is entered to global search, also list linked issues

Context

In Systems where Issue Linkage is used, issues can be linked to other issues in different meanings: relates to, caused by, solved by, duplicated by, ...

When the user enters an issue key in the quick search field, it would be great to be able to see all linked issues to the search key as well --> this would effectively avoid users having to open the issue detail page & navigate to the linked issues section manually.

You will be also create new links