enhance search function for groups

Problem:

The group function is often used to keep the routine tidy and organized.

But when you have "collapsed" groups in your measurement routine, the search function doesn't show matches inside of them. The user needs to open all groups first to use the search.

This is very time-consuming. Inexperienced users may not know that they have to open the groups first.

Solution:

Add a checkbox to the search function called "Search inside groups" or similar.

When checked, the search function also looks inside groups for matches.