Add new prop to disallow empty for <n-input-number>

[gitcobra]

<n-input-number> rejects non-numeric values by default, but when the input box is empty, the value is set to null even if min prop exists.

This behavior is intentional probably, but I think there are many cases where we need only a valid number without empty.

Currently I have to set on-update:value or on-blur to reject null.

Suggested solution

I suggest something new prop to disallow empty like

:disallow-empty="true"
or
:allow-empty="false"
etc..

If the prop specified and the input box is empty, the value should be the same as min prop or 0.

Alternative

No response

Additional context

No response

Validations

• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.