Migrate ExpensifyCard/ConfirmationPage to Navigation-Based Validation

[mjasikowski]

Problem

The ConfirmationStep in the Expensify Card flow (ConfirmationStep.tsx) uses ValidateCodeActionModal triggered by local state.

Solution

Refactor the validation flow to use a Navigation-Based approach.

Specific Component to Migrate

• Current File: src/pages/workspace/expensifyCard/issueNew/ConfirmationStep.tsx

[samranahm]

Are we accepting External contributors on it, I’m ready to work on this one.

[mjasikowski]

@samranahm we're not, sorry

[jmusial]

Taking this one today