Unable to add more than 353 accounts in Edge Extensions for Authenticator

### Describe the issue

Hi Team,

I have 3 issues:

1. I am using Edge Extensions for Authenticator in my edge browser. Currently I have 353 accounts added into this and I am unable to add 354th account. Is it a limitation ?
2. In chrome I can see the version 6.3.5 which updated on May 10, 2023. But in edge I can only see 6.3.3 which is last updated on Updated October 22, 2021. Why latest version is not available in edge ?
3. I have created a backup from Edge with 353 accounts and tried to restore in chrome extension but it is not working. When I removed half of the accounts it worked. Why is this behavior ?

Requesting your support.

Regards,
Denny Johny

### Browser

Edge

### Browser Version

Version 116.0.1938.62 (Official build) (64-bit)

### Extension Version

6.3.3

まず、Edge extension 6.3.3 と Chrome extension 6.3.5 を使用して、354番目のアカウントでの失敗とバックアップ復元の挙動を再現します。利用可能な拡張機能のバージョンを比較し、アカウント制限とブラウザー間の復元の挙動が意図されたものかどうかを判断します。完了の条件は、報告された3つの挙動が説明されるか修正されることです。

索引モデルが issue の本文から書いたものです。