NzModal footer text is rendering the title

[gsfitis]

Reproduction link

https://angular-il82cm.stackblitz.io

Steps to reproduce

Add a string to nzFooter property of a simple NzModalComponent.

What is expected?

Judging from the API the modal's nzFooter property accepts a string among other types. So i would expect it to render the passed string.

What is actually happening?

When you pass a string in the nzFooter property it renders the nzTitle property.

Environment	Info
ng-zorro-antd	11.2.0
Browser	Chrome

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I did some digging in the modal source code. I found this

<div *ngIf="!buttonsFooter" [innerHTML]="config.nzTitle"></div>

line in

https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/components/modal/modal-footer.component.ts

line 22.

Is this how it suppose to work?