Implement predictive search for client number input field

[OlgaLiber2]

Describe the task
remove the manual button "add client number" and implement predictive search for client number input field

Acceptance Criteria

• predictive search when user types 3 characters
• able to search by client number
• able to search by org/client name

Additional context

• use same behaviour as search by username (ticket Remove "verify" button and change to predictive search #1332)