fix: rus translation in #119

[Rithor]

In the English version:

• B: Mara undefined Lydia Hallie ReferenceError
• member.getLastName?.(): variable member is non-existent therefore a ReferenceError gets thrown!

[oshliaer]

You're right. The typo lived from c85b88b

{
    const person = {
        firstName: 'Lydia',
        lastName: 'Hallie',
        pet: {
            name: 'Mara',
            breed: 'Dutch Tulip Hound'
        },
        getFullName() {
            return `${this.firstName} ${this.lastName}`;
        }
    };

    console.log(person.pet?.name);
    console.log(person.pet?.family?.name);
    console.log(person.getFullName?.());
    console.log(member.getLastName?.());
}

test:14 Mara
10:19:24.972 test:15 undefined
10:19:24.972 test:16 Lydia Hallie
10:19:24.987 test:17 Uncaught ReferenceError: member is not defined at test:17:17

Thanks for catching