remove usage of fpts from alerts

Author: gmmorris

x-pack/plugins/alerts/public/alert_api.ts

@@ -5,12 +5,9 @@
  */
 
 import { HttpSetup } from 'kibana/public';
-import { findFirst } from 'fp-ts/lib/Array';
-import { isNone } from 'fp-ts/lib/Option';
-
 import { i18n } from '@kbn/i18n';
 import { BASE_ALERT_API_PATH } from '../common';
-import { Alert, AlertType } from '../common';
+import type { Alert, AlertType } from '../common';
 
 export async function loadAlertTypes({ http }: { http: HttpSetup }): Promise<AlertType[]> {
   return await http.get(`${BASE_ALERT_API_PATH}/list_alert_types`);
@@ -23,10 +20,10 @@ export async function loadAlertType({
   http: HttpSetup;
   id: AlertType['id'];
 }): Promise<AlertType> {
-  const maybeAlertType = findFirst<AlertType>((type) => type.id === id)(
-    await http.get(`${BASE_ALERT_API_PATH}/list_alert_types`)
-  );
-  if (isNone(maybeAlertType)) {
+  const maybeAlertType = ((await http.get(
+    `${BASE_ALERT_API_PATH}/list_alert_types`
+  )) as AlertType[]).find((type) => type.id === id);
+  if (!maybeAlertType) {
     throw new Error(
       i18n.translate('xpack.alerts.loadAlertType.missingAlertTypeError', {
         defaultMessage: 'Alert type "{id}" is not registered.',
@@ -36,7 +33,7 @@ export async function loadAlertType({
       })
     );
   }
-  return maybeAlertType.value;
+  return maybeAlertType;
 }
 
 export async function loadAlert({