The $10,000 repayment is not a new contribution. Do not enter it anywhere under Deductions and Credits.
You'll enter this repayment in the Retirement section under Wages & Income, but this section does not yet supporting reporting this repayment, considered to be repayment of a type of disaster distribution. You'll have to wait for 2021 TurboTax to support Form 8915-F, currently scheduled for release on 03/31/2022.