fix(module:page-header): has footer or breadcrumb style bug

[CK110]

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?

[x] 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

NzPageHeaderComponent don't use .has-breadcrumb .has-footer style class

What is the new behavior?

use .has-breadcrumb .has-footer style class

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[netlify]

Deploy preview for ng-zorro-master ready!

Built with commit 6bc2ccc

https://deploy-preview-4363--ng-zorro-master.netlify.com

[hsuanxyz]

Thank you PR, it looks good. But need to modify the it('should footer work', ...) test, and add a case to test has-breadcrumb.

[codecov]

Codecov Report

Merging #4363 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #4363      +/-   ##
==========================================
+ Coverage    92.2%   92.21%   +<.01%     
==========================================
  Files         520      520              
  Lines       11039    11040       +1     
  Branches     1997     1997              
==========================================
+ Hits        10178    10180       +2     
  Misses        429      429              
+ Partials      432      431       -1

Impacted Files	Coverage Δ
components/page-header/nz-page-header.component.ts	100% <100%> (ø)	⬆️
components/time-picker/time-holder.ts	97.36% <0%> (+0.87%)	⬆️

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