fix(frontend/i18n): 翻訳があたっていない部分を修正

[kakkokari-gtyih]

that Japanese string exactly matches that i18n key

(cherry picked from commit a408d32bb72ada9a4ad6bd1afe6e3fadb9b403db)

What

対応する翻訳があるのに使われていないのを修正

Why

Additional info (optional)

Checklist

• [x] Read the contribution guide
• [ ] Test working in a local environment
• [ ] (If needed) Add story of storybook
• [ ] (If needed) Update CHANGELOG.md
• [ ] (If possible) Add tests

[syuilo]

🙏🏿

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 20.02%. Comparing base (1b5f057) to head (74cfc24). Report is 1 commits behind head on develop.

Files	Patch %	Lines
packages/frontend/src/pages/admin/abuses.vue	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #14444 +/- ## ======================================== Coverage 20.02% 20.02% ======================================== Files 725 725 Lines 100535 100535 Branches 1052 1052 ======================================== Hits 20136 20136 Misses 79855 79855 Partials 544 544 ```

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