feat(module:menu): add danger style

[wenqi73]

close #5881

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
[x] 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

[zorro-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

Merging #5932 into master will decrease coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #5932      +/-   ##
==========================================
- Coverage   90.02%   89.99%   -0.03%     
==========================================
  Files         463      463              
  Lines       13947    13948       +1     
  Branches     2202     2202              
==========================================
- Hits        12556    12553       -3     
- Misses        856      861       +5     
+ Partials      535      534       -1     

Impacted Files	Coverage Δ
components/menu/menu-item.directive.ts	76.19% <100.00%> (+0.38%)	⬆️
components/table/src/table/tbody.component.ts	85.71% <0.00%> (-14.29%)	⬇️
components/table/src/table/tr-measure.component.ts	86.36% <0.00%> (-13.64%)	⬇️
components/table/src/table-style.service.ts	96.55% <0.00%> (+1.72%)	⬆️

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