add key prop inside `preAwardRasData.map`

[jkcox]

Elements rendered inside .map(...) are missing a stable key prop (e.g., the <div className="mb-4"> inside preAwardRasData.map). This will trigger React warnings and can cause inefficient or incorrect UI updates when lists change. Provide a unique key (e.g., a contact id or a composite of userID + role).

Originally posted by @Copilot in #291 (comment)

AB#44472