Use it.each on Vitest test codes

[REI-MORI]

Tasks

• Pelace "test.each" to "it.each" on test codes

Estimated Time: XXmin

Writing the Issue

• Write each task for this issue using checkboxes
• Write all verbal instructions as tasks
• Add labels and assignees

Before Working on the Issue

• Assign yourself
• Git: Fetch the latest main
• Git: Create a branch with the name of the issue

Pre-PR Checks

• Insure that changes include only what is necessary for this PR
• Implement necessary Unit tests
• Implement necessary E2E tests
• Perform functionality checks