feat: do not allow for handling if csv is not downloaded

frontend/benefit/handler/src/components/alterationHandling/AlterationHandlingForm.tsx

@@ -49,10 +49,6 @@ type Props = {
   onClose: () => void;
 };
 
-const handleAlterationCsvDownload = (): void => {
-  // TODO add any necessary logic here after the CSV download
-};
-
 const AlterationHandlingForm = ({
   application,
   alteration,
@@ -83,6 +79,12 @@ const AlterationHandlingForm = ({
   const [isMessagesDrawerVisible, toggleMessagesDrawerVisibility] =
     useState<boolean>(false);
 
+  const [isCSVDownloadDone, setIsCSVDownloadDone] = useState<boolean>(false);
+
+  const handleAlterationCsvDownload = (): void => {
+    setIsCSVDownloadDone(true);
+  };
+
   const getErrorMessage = (fieldName: string): string | undefined =>
     getErrorText(formik.errors, formik.touched, fieldName, t, isSubmitted);
 
@@ -287,7 +289,9 @@ const AlterationHandlingForm = ({
               onClick={openConfirmationModal}
               theme="coat"
               iconLeft={<IconCheck />}
-              disabled={isSubmitting || (isSubmitted && hasErrors)}
+              disabled={
+                isSubmitting || (isSubmitted && hasErrors) || !isCSVDownloadDone
+              }
               isLoading={isSubmitting}
               loadingText={t('common:utility.submitting')}
             >