BUG - NameX Administration / broken calendar in Word Classification

Access https://namex-solr-admin-app-test-457237769279.northamerica-northeast1.run.app/admin/synonym/

**Word Classification**
During creation, Approved Dt calendar can be broken if user paste invalid format:
(Try typing something wrong like 00000000)
The expected behavior would be validate the user input and don't allow wrong formats
Actual result:

After that, even if user tries to use the dropdown, it will display invalid numbers and it's quite difficult to actually correct it and point an actual date

Open the NameX Administration Word Classification screen at the linked test URL and reproduce the issue by entering 00000000 in Approved Dt. Start by inspecting the calendar/input entry point for that field; done means invalid pasted input is rejected or validated and the dropdown remains usable for selecting a valid date.

Written by the indexing model from the issue text.