[Vite] Lots of messages of "(some package) is incorrectly packaged. Please contact the package author to fix." give the impression that something is broken

[gilberto-torrezan]

When running a project in development mode with Vite, the console gets lots of messages like:

@vaadin/vaadin-avatar is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-board is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-button is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-charts is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-checkbox is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-combo-box is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-confirm-dialog is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-context-menu is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-cookie-consent is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-crud is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-custom-field is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-date-picker is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-date-time-picker is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-details is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-dialog is incorrectly packaged. Please contact the package author to fix.
@vaadin/vaadin-form-layout is incorrectly packaged. Please contact the package author to fix.

This seems to be happening with every webcomponent that has some dependency with Polymer.

[gilberto-torrezan]

Closing as duplicate of #12574