Address mistake while filling up online applications

I made an settlement visa application and came to realise that I put
completely wrong address detail of my wife while filling up online
application. However my wife payslips, bank statement, utilities bills, job
letters, accommodation letter have the right address. Unfortunately I have
already done bio matrices and the documents are already reached in home
office. So Is there any way I can amend that mistake or should I need to
write down the covering letter? what are the chances of rejecting the visa
cauz of this silly mistake.

Write a letter explaining the situation

Or perphaphs send an email to UKVI and ask them to forward message to decision making centre with the message of mistake on application.