fix(module:date-picker): fix datePicker show multi panel

[luckyship]

PR Checklist

Please check if your PR fulfills the following requirements:

• [x ] 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: #7450

What is the new behavior?

it wiill show normally

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 #7680 (1492594) into master (1a16154) will decrease coverage by 0.02%.
The diff coverage is 100.00%.

❗ Current head 1492594 differs from pull request most recent head ccf358b. Consider uploading reports for the commit ccf358b to get more accurate results

@@            Coverage Diff             @@
##           master    #7680      +/-   ##
==========================================
- Coverage   92.02%   92.00%   -0.03%     
==========================================
  Files         502      502              
  Lines       16752    16756       +4     
  Branches     2634     2634              
==========================================
  Hits        15416    15416              
- Misses       1065     1072       +7     
+ Partials      271      268       -3     

Impacted Files	Coverage Δ
components/date-picker/date-picker.component.ts	93.78% <100.00%> (+0.07%)	⬆️
components/table/src/table/tbody.component.ts	88.88% <0.00%> (-11.12%)	⬇️
...ts/table/src/table/table-inner-scroll.component.ts	79.41% <0.00%> (-4.42%)	⬇️
components/table/src/table/tr-measure.component.ts	86.95% <0.00%> (-4.35%)	⬇️
components/core/util/text-measure.ts	92.10% <0.00%> (-0.88%)	⬇️
components/tabs/tab-nav-bar.component.ts	87.94% <0.00%> (+0.70%)	⬆️
components/table/src/table-style.service.ts	96.55% <0.00%> (+1.72%)	⬆️

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[wenqi73]

This change causes another problem: the cursor in the input element cannot be moved with mousedown

[luckyship]

This change causes another problem: the cursor in the input element cannot be moved with mousedown

@wenqi73 thanks for pointer my fault, i have filter input element when prevent default event, pls review again

[wenqi73]

LGTM. Thanks!