Enatega Admin-dashboard: Change success message content when new store is added

### Describe the bug
This bug involves the success message displayed when a new store is added. Instead of showing the correct confirmation message, the system either displays incorrect, misleading, or generic text that does not accurately confirm the action taken. It is currently displaying a message Timing Updated.

### To Reproduce
Steps to reproduce the behavior:

1. Navigate to the store creation page.
2. Enter the required details and submit the form.
3. Observe the success message displayed.

### Expected behavior
It should display a message '' New store added or created successfully''

Desktop (please complete the following information):

> OS: [e.g. Windows]
> Browser [e.g. Chrome]
> Version [e.g. Latest]

管理ダッシュボードのstore作成ページから始め、frontendで現在の成功テキスト「Timing Updated」を検索します。storeの送信後に表示されるメッセージを、新しいstoreが正常に追加または作成されたことを確認する内容に変更し、その後issueの手順を再現して結果を確認します。

索引モデルが issue の本文から書いたものです。