Employee Profile_files exact field/layout update

Updated pages:
- /hrms/staff_register.php
- /hrms/staff_profile_update.php
- /hrms/staff_form.php
- /admin/hrms/staff_form.php
- /admin/hrms/staff_form.php?id=1

Uploaded Employee Profile_files assets copied into /assets/employee_profile_files/.
The form labels/sections now follow Employee Profile.html: Basic Details, Education Details, Experience Details, Research Paper / Workshop Details, Documents Details, Bank Account.
Run /admin/hrms/staff_profile_schema_repair.php after upload.