refactor(frontend): 非推奨の表現を改める

[kakkokari-gtyih]

What

• i18n.t('') を i18n.tsx に置き換え
• shikiのgetHighlighterCoreをcreateHighlighterCoreに置き換え（ feat!: rename getHighlighter to createHighlighter shikijs/shiki#702 ）

Why

Additional info (optional)

Checklist

• 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

[codecov]

Codecov Report

Attention: Patch coverage is 3.03030% with 32 lines in your changes missing coverage. Please review.

Project coverage is 19.57%. Comparing base (f393b6b) to head (b2f5168).
Report is 6 commits behind head on develop.

Files with missing lines	Patch %	Lines
...rontend/src/pages/settings/preferences-backups.vue	0.00%	30 Missing ⚠️
packages/frontend/src/scripts/code-highlighter.ts	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop   #14517   +/-   ##
========================================
  Coverage    19.57%   19.57%           
========================================
  Files          717      717           
  Lines       100466   100465    -1     
  Branches      1005     1005           
========================================
  Hits         19669    19669           
+ Misses       80251    80250    -1     
  Partials       546      546           

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[kakkokari-gtyih]

👀

[kakkokari-gtyih]

このPRで変えた部分だけi18n.t()を使い続けていた理由とかってあるのかしら

[acid-chicken]

このPRで変えた部分だけi18n.t()を使い続けていた理由とかってあるのかしら

7881f06
5764848

[kakkokari-gtyih]

このPRで変えた部分だけi18n.t()を使い続けていた理由とかってあるのかしら

7881f06 5764848

どちらも特に問題なさそうではある（MkPostFormAttaches.vueは時期的に過渡期だった可能性がある。preferences-backups.vueはi18nの書き方が特殊だったから置き換え漏れたとか？）

[acid-chicken]

コミット日付

[syuilo]

🙏🏿