Update message when password does not match requirement (#28178)

Co-authored-by: Ben Schumacher <ben.schumacher@mattermost.com>
Co-authored-by: Caleb Roseland <caleb@calebroseland.com>

server/channels/app/user.go

@@ -255,7 +255,7 @@ func (a *App) createUserOrGuest(c request.CTX, user *model.User, guest bool) (*m
 		case errors.Is(nErr, users.AcceptedDomainError):
 			return nil, model.NewAppError("createUserOrGuest", "api.user.create_user.accepted_domain.app_error", nil, "", http.StatusBadRequest).Wrap(nErr)
 		case errors.As(nErr, &nfErr):
-			return nil, model.NewAppError("createUserOrGuest", "api.user.check_user_password.invalid.app_error", nil, "", http.StatusBadRequest).Wrap(nErr)
+			return nil, model.NewAppError("createUserOrGuest", nfErr.Id(), map[string]interface{}{"Min": *a.Config().PasswordSettings.MinimumLength}, "", http.StatusBadRequest)
 		case errors.Is(nErr, users.UserStoreIsEmptyError):
 			return nil, model.NewAppError("createUserOrGuest", "app.user.store_is_empty.app_error", nil, "", http.StatusInternalServerError).Wrap(nErr)
 		case errors.As(nErr, &invErr):