Include infants (under 2) in %children% shortcode

Currently, the %children% shortcode used in rental agreements only captures children aged 2 years and older. This means that guests listed as infants (under 2 years old) on platforms like Airbnb are not included in the children count, leading to inaccurate guest breakdowns in rental agreements (e.g., showing 0 children when infants are present).

The request is to update the %children% shortcode to include all children regardless of age, or provide a separate shortcode specifically for infants, so that rental agreements accurately reflect the total number of children.