新規登録フォームのカラム名が日本語化できません

モーダルでuser新規登録フォームを表示しているのですが、カラムが日本語になりません。
Gemにはgem 'rails-i18n'を入れています。

erb
1<div class="modal-dialog modal-lg modal-dialog-center">
2  <div class="modal-content">
3    <div class="modal-header">
4      <!--モーダルを閉じる✖︎ボタン-->
5      <button type="button" class="close" data-dismiss="modal" aria-label="Close">
6        <span aria-hidden="true">✖︎</span>
7      </button>
8      <h1 class="modal-title">新規登録</h1>
9    </div>
10    <div class="modal-body">
11      <div class="row">
12        <div class="col-md-6 col-md-offset-3">
13          <%= form_with(model: @user, local: true) do |f| %>
14            <%= f.label :name, class: "label-signup" %>
15            <%= f.text_field :name, class: "form-control" %>
16
17            <%= f.label :email, class: "label-signup" %>
18            <%= f.email_field :email, class: "form-control" %>
19
20            <%= f.label :contact, class: "label-signup" %>
21            <%= f.number_field :contact, class: "form-control" %>
22
23            <%= f.label :password, class: "label-signup" %>
24            <%= f.password_field :password, class: "form-control" %>
25
26            <%= f.label :password_confirmation, class: "label-signup" %>
27            <%= f.password_field :password_confirmation, class: "form-control" %>
28
29            <%= f.submit "新規登録", class: "btn btn-primary btn-block btn-signup" %>
30          <% end %>
31        </div>
32      </div>
33    </div>
34  </div>
35</div>
36

rb
1ActiveRecord::Schema.define(version: 2021_01_06_012738) do
2
3  create_table "users", force: :cascade do |t|
4    t.string "name"
5    t.string "email"
6    t.integer "contact"
7    t.datetime "created_at", null: false
8    t.datetime "updated_at", null: false
9    t.string "password_digest"
10    t.index ["email"], name: "index_users_on_email", unique: true
11  end
12
13end
14

yml
1ja:
2  activerecord:
3    models:
4      user: ユーザー
5    attributes:
6      user:
7        id: ID
8        name: 名前
9        email: メールアドレス
10        contact: 契約日数
11        password: パスワード
12        password_confirmation: パスワード再入力
13        created_at: 作成日
14        updated_at: 更新日

rb
1require_relative 'boot'
2require 'rails/all'
3
4# Require the gems listed in Gemfile, including any gems
5# you've limited to :test, :development, or :production.
6Bundler.require(*Rails.groups)
7
8module AccepteApp
9  class Application < Rails::Application
10    # Initialize configuration defaults for originally generated Rails version.
11    config.load_defaults 5.2
12    config.time_zone = 'Asia/Tokyo'
13    config.i18n.default_locale = :ja # デフォルトの言語を日本語に設定します。
14    config.i18n.load_path += Dir[Rails.root.join('config', 'locales', '**', '*.{rb,yml}').to_s]
15    # Settings in config/environments/* take precedence over those specified here.
16    # Application configuration can go into files in config/initializers
17    # -- all .rb files in that directory are automatically loaded after loading
18    # the framework and any gems in your application.
19  end
20end
21