chore(server): remove enable flag in mail config (#11680)

close #11625

packages/frontend/i18n/src/i18n.gen.ts

@@ -7690,6 +7690,10 @@ export function useAFFiNEI18N(): {
     ["error.HTTP_REQUEST_ERROR"](options: {
         readonly message: string;
     }): string;
+    /**
+      * `Email service is not configured.`
+      */
+    ["error.EMAIL_SERVICE_NOT_CONFIGURED"](): string;
     /**
       * `Query is too long, max length is {{max}}.`
       */

packages/frontend/i18n/src/resources/en.json

@@ -1923,6 +1923,7 @@
   "error.BAD_REQUEST": "Bad request.",
   "error.GRAPHQL_BAD_REQUEST": "GraphQL bad request, code: {{code}}, {{message}}",
   "error.HTTP_REQUEST_ERROR": "HTTP request error, message: {{message}}",
+  "error.EMAIL_SERVICE_NOT_CONFIGURED": "Email service is not configured.",
   "error.QUERY_TOO_LONG": "Query is too long, max length is {{max}}.",
   "error.VALIDATION_ERROR": "Validation error, errors: {{errors}}",
   "error.USER_NOT_FOUND": "User not found.",