Turn off eslint rule: operator-assignment #2245

The linting in the console / terminal is suppose to be sensible defaults + things that cause common bugs.

The operator-assignment rule is generally just visual (and plenty of people argue for and against).

total = total + subtotal
vs
total += subtotal

or

total = total + (parseInt(ticket.ticketPrice, 10) * parseInt(ticket.ticketCount, 10))
vs
total += parseInt(ticket.ticketPrice, 10) * parseInt(ticket.ticketCount, 10)

The linting rule should be removed so people can choose their own preference.

Happy to submit PR if approved.