fix(frontend): lint fixes for tweak control panel

[kakkokari-gtyih]

What

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[bot]]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 19.47%. Comparing base (0e92cbf) to head (fa67dd9). Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
packages/frontend/src/pages/admin/performance.vue	0.00%	4 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #14607 +/- ## ============================================ - Coverage 39.63% 19.47% -20.17% ============================================ Files 1540 713 -827 Lines 192251 100702 -91549 Branches 3532 985 -2547 ============================================ - Hits 76207 19612 -56595 + Misses 115449 80546 -34903 + Partials 595 544 -51 ```

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[syuilo]

🙏🏻