🐛 (lld) pluralization issue my ledger

[LucasWerey]

✅ Checklist

• npx changeset was attached.
• Covered by automatic tests.
• Impact of the changes:
  • my ledger / i18next

📝 Description

During add account rework, we changed all the _plural key to _other key as _plural isn't supported by i18next. We missed this one so this PR fixes the issue

❓ Context

• JIRA or GitHub link: LIVE-19917

🧐 Checklist for the PR Reviewers

• The code aligns with the requirements described in the linked JIRA or GitHub issue.
• The PR description clearly documents the changes made and explains any technical trade-offs or design decisions.
• There are no undocumented trade-offs, technical debt, or maintainability issues.
• The PR has been tested thoroughly, and any potential edge cases have been considered and handled.
• Any new dependencies have been justified and documented.
• Performance considerations have been taken into account. (changes have been profiled or benchmarked if necessary)

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4 Skipped Deployments

Name	Status	Preview	Comments	Updated (UTC)
ledger-live-github-bot	⬜️ Ignored (Inspect)			Jun 26, 2025 10:29am
native-ui-storybook	⬜️ Ignored (Inspect)			Jun 26, 2025 10:29am
react-ui-storybook	⬜️ Ignored (Inspect)			Jun 26, 2025 10:29am
web-tools	⬜️ Ignored (Inspect)			Jun 26, 2025 10:29am