message: fix cloud functions build breaking
diff: @@ -4,12 +4,12 @@ export const serverTimestamp = admin.firestore.FieldValue.serverTimestamp;
  import { sendEmail } from "./email";
  import { hasAnyRole } from "./auth";
  -var characters =
  +const characters =
  "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
  export function generateId(length) {
  - var result = "";
  - var charactersLength = characters.length;
  - for (var i = 0; i < length; i++) {
  + let result = "";
  + const charactersLength = characters.length;
  + for (let i = 0; i < length; i++) {
  result += characters.charAt(Math.floor(Math.random() * charactersLength));
  }
  return result;
  