fix(module:*): fix style error with 3.23.6

[vthinkxie]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[ ] No

Other information

[netlify]

Deploy preview for ng-zorro-master ready!

Built with commit d19c678

https://deploy-preview-4258--ng-zorro-master.netlify.com

[hsuanxyz]

breadcrumb 结构有变化

<div class="ant-breadcrumb">
  <span>
    <a class="ant-breadcrumb-link">
      <i>...</i>
      <span>Application List</span>
    </a>
    <span class="ant-breadcrumb-separator">/</span>
  </span>
</div>

<nz-breadcrumb class="ant-breadcrumb">
  <nz-breadcrumb-item>
    <span class="ant-breadcrumb-link">
      <a>
        <i>...</i>
        <span>Application List</span>
      </a>
    </span>
    <span class="ant-breadcrumb-separator">/</span>
  </nz-breadcrumb-item>
</nz-breadcrumb>

[hsuanxyz]

下拉按钮 class 不一样

https://ant.design/components/dropdown-cn/#components-dropdown-demo-dropdown-button

- <nz-button-group class="ant-btn-group">
+ <nz-button-group class="ant-btn-group ant-dropdown-button">
  <button class="ant-btn ant-btn-default"><span>DropDown</span></button>
-  <button class="ant-dropdown-trigger ant-btn ant-btn-default ant-btn-icon-only">
+  <button class="ant-dropdown-trigger ant-btn ant-btn-default">
    <i>...</i>
-    <span style="display: none;"></span>
  </button>
</nz-button-group>

[codecov]

Codecov Report

Merging #4258 into master will decrease coverage by 0.05%.
The diff coverage is 50%.

@@            Coverage Diff             @@
##           master    #4258      +/-   ##
==========================================
- Coverage   92.33%   92.28%   -0.06%     
==========================================
  Files         520      520              
  Lines       10965    10977      +12     
  Branches     1984     1988       +4     
==========================================
+ Hits        10125    10130       +5     
- Misses        418      422       +4     
- Partials      422      425       +3

Impacted Files	Coverage Δ
components/grid/nz-col.directive.ts	100% <ø> (ø)	⬆️
components/button/demo/size.ts	100% <ø> (ø)	⬆️
components/button/demo/icon.ts	100% <ø> (ø)	⬆️
components/card/nz-card-grid.directive.ts	100% <100%> (ø)	⬆️
components/button/nz-button.component.ts	94.28% <100%> (+0.16%)	⬆️
components/button/nz-button-group.component.ts	100% <100%> (ø)	⬆️
components/core/logger/logger.ts	38.88% <25%> (-11.12%)	⬇️
components/dropdown/nz-dropdown.directive.ts	83.94% <33.33%> (-2.32%)	⬇️

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[hsuanxyz]

ngIf 应该在 header 上面，否则会有一个空的左边距

-  <div class="ant-skeleton-header">
+  <div class="ant-skeleton-header" *ngIf="!!nzAvatar">
    <span
-      *ngIf="!!nzAvatar"
      class="ant-skeleton-avatar"
      [class.ant-skeleton-avatar-lg]="avatar.size === 'large'"
      [class.ant-skeleton-avatar-sm]="avatar.size === 'small'"
      [class.ant-skeleton-avatar-circle]="avatar.shape === 'circle'"
      [class.ant-skeleton-avatar-square]="avatar.shape === 'square'">
    </span>
  </div>