Incorrect work of schema validation in the excel import

[kirill-tolochko]

Problem description

Incorrect work of schema validation in excel import - path to the error isn't shown at the moment if user tries to upload the excel on the schemas page. Path is shown, if user tries to upload the same excel via policy page

Step to reproduce

Steps to reproduce the behavior:

1. Import the file from the attachment on the schemas page via Import from Excel http://localhost:4200/schemas
   AR-Tool 14 - deleted column for import.xlsx
2. Check the errors at the bottom of the dialog

Expected behavior

Path to the error is displayed

Actual behavior

Path to the error isn't displayed.