Enhance test organization and configuration in Playwright

[coderabbitai]

This issue tracks the enhancement of organizing tests into subdirectories and using glob patterns in the testMatch configuration in the Playwright test suite.

Rationale:

• As the test suite grows, organizing tests into subdirectories (e.g., tests/guest/) and using glob patterns in testMatch will make it easier to manage and maintain the tests.

References:

• PR: Automate check of ups assets with translations #6
• Comment: Automate check of ups assets with translations #6 (comment)

Assignee: @amurKontur