Add phone number(s) to search for and display out in Contacts menu

Is your feature request related to a problem? Please describe.

NC has a search button to search quickly for information from address books. By now it searches for names and emails, and shows avatar, name, email and link to details.
Please, add the functionality to search by phone numbers and add another field - phone number(s) which sometime is more relevant than email.

Describe the solution you'd like

Add the field to show phone number(s). Add the search functionality across phone numbers.

Describe alternatives you've considered

Ideally, this can be defined by admin which fields:

• to search
• to show in the contacts search bar.

Additional context

Search by phone numbers should be added to the global search as well.

Start by tracing the Contacts menu search and the global search entry points mentioned in the issue, then identify how contact fields are queried and rendered. Done means phone numbers can be searched and displayed alongside existing contact results, with the requested field-selection behavior clarified before implementation.