fix(#3560): improve validation in UncontrolledImageInput by checking fieldState.error, ensuring users see input errors even with empty messages

Author: Ciabas

govtool/frontend/src/components/organisms/UncontrolledImageInput.tsx

@@ -57,8 +57,8 @@ export const UncontrolledImageInput = <T extends FieldValues>({
           borderRadius: "50px",
           height: "50px",
           border: "1px solid",
-          borderColor: fieldState.error?.message ? "red" : "#6F99FF",
-          backgroundColor: fieldState.error?.message ? "#FAEAEB" : "white",
+          borderColor: fieldState.error ? "red" : "#6F99FF",
+          backgroundColor: fieldState.error ? "#FAEAEB" : "white",
           boxSizing: "border-box",
           margin: 0,
           display: "block",