[FIX] hr_attendance: fix attendance check in/out layout issue when having no employee

When user is not linked to any employee and get try to check in/out then user
gets white screen. Instead correctly displays a warning message telling
the user should have an employee.

Screeshot: https://drive.google.com/file/d/1cX1NtCcELeTYgr0kK5cW4i5etyHtezAV/view

This commit is related to task ID 1841522. Closes PR #25230.