Fix blazor number field

[atmgrifter00]

Pull Request

🤨 Rationale

• Issues with two-way binding of NimbleNumberField #2469

👩‍💻 Implementation

Most of our input controls bind their current-value attribute in the razor template. The NumberField, however, was binding its value attribute. There doesn't seem to be a valid reason for this, and I have switched it be in-line with the other input controls.

🧪 Testing

Wrote an acceptance test.

✅ Checklist

• I have updated the project documentation to reflect my changes or determined no changes are needed.