feat: convert multiple_selected_dates.test.js into tsx

[yasuaki640]

---

name: Migrate filter_times_test.test.js

Description

Linked issue: #4700

Changes Converted multiple_selected_dates.test.js to a tsx file.

Contribution checklist

• [x] I have followed the contributing guidelines.
• [x] I have added sufficient test coverage for my changes.
• [x] I have formatted my code with Prettier and checked for linting issues with ESLint for code readability.

[martijnrusschen]

Nice one, i've started the CI and your PR will be reviewed by the @pullrequestinc team.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.67%. Comparing base (6491d16) to head (053cabb).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #4827 +/- ## ======================================= Coverage 96.67% 96.67% ======================================= Files 28 28 Lines 2977 2977 Branches 1285 1285 ======================================= Hits 2878 2878 Misses 99 99 ```

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