fix(module: drawer, modal): fix focus bug of IE

[hsuanxyz]

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: #2388

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

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[codecov]

Codecov Report

Merging #2589 into master will decrease coverage by <.01%.
The diff coverage is 80%.

@@            Coverage Diff             @@
##           master    #2589      +/-   ##
==========================================
- Coverage    95.5%   95.49%   -0.01%     
==========================================
  Files         495      495              
  Lines       12098    12101       +3     
  Branches     1689     1690       +1     
==========================================
+ Hits        11554    11556       +2     
  Misses        172      172              
- Partials      372      373       +1

Impacted Files	Coverage Δ
components/modal/nz-modal.component.ts	95.85% <100%> (ø)	⬆️
components/drawer/nz-drawer.service.ts	100% <100%> (ø)	⬆️
components/drawer/nz-drawer.component.ts	97.61% <66.66%> (-0.58%)	⬇️

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