fix: inline cdk-overlay style

[HyperLife1119]

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: #8131

What is the new behavior?

This question is similar to angular/angular-cli#12981 , importing lib.css in a relative directory will cause some problems.

No better solution has been found yet. This modification will use the past method of manually inlining the overlay style.

We should merge it as soon as possible and release a patch version.

@OriginRing @Nicoss54

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[zorro-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

Merging #8132 (b8d430a) into master (a664db7) will increase coverage by 1.52%.
The diff coverage is n/a.

❗ Current head b8d430a differs from pull request most recent head e5bfcbb. Consider uploading reports for the commit e5bfcbb to get more accurate results

@@            Coverage Diff             @@
##           master    #8132      +/-   ##
==========================================
+ Coverage   91.66%   93.18%   +1.52%     
==========================================
  Files         518      518              
  Lines       17796    17796              
  Branches     2724     2724              
==========================================
+ Hits        16313    16584     +271     
+ Misses       1180     1179       -1     
+ Partials      303       33     -270     

see 107 files with indirect coverage changes

[Nicoss54]

@OriginRing this is a fix for a critical issue. I merge it and it really important to make a release patch fast since currently the library doesn’t work

[OriginRing]

@Nicoss54 I will post it in the next two days (16.2.2)