Input field of multiselect does not extend to the entire length of the select

[alinashklyar]

Reproduction link

https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/components/select/demo/select-users.ts

Steps to reproduce

Find multiselect field in documentation component's page and type long value in search field

What is expected?

size of input should extend till the end of the select, just as it is in react ant version

What is actually happening?

Size of available place for text is shorten to 78px (with every screen size), though there is still a lot of free place inside of select to expand

Environment	Info
ng-zorro-antd	13.3.2
Browser	Chrome

[LemniscateX]

Hi there, I've found the reason and I'd like to fix this 👀