perf(module:resizable): listen document events when resizing start

[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?

[ ] 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
[x] No

Other information

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[codecov]

Codecov Report

Merging #4021 into master will decrease coverage by 0.27%.
The diff coverage is 98.24%.

@@            Coverage Diff             @@
##           master    #4021      +/-   ##
==========================================
- Coverage   92.41%   92.13%   -0.28%     
==========================================
  Files         506      507       +1     
  Lines       10749    10775      +26     
  Branches     1942     1945       +3     
==========================================
- Hits         9934     9928       -6     
- Misses        400      431      +31     
- Partials      415      416       +1

Impacted Files	Coverage Δ
components/resizable/nz-resizable-utils.ts	0% <0%> (ø)
components/core/testing/event-objects.ts	85.71% <100%> (ø)	⬆️
components/resizable/nz-resizable.directive.ts	92.05% <100%> (+0.77%)	⬆️
components/resizable/nz-resize-handle.component.ts	100% <100%> (ø)	⬆️
components/resizable/nz-resizable.service.ts	100% <100%> (ø)	⬆️
components/tabs/nz-tabs-ink-bar.directive.ts	60% <0%> (-30%)	⬇️
components/core/scroll/nz-scroll.service.ts	38.29% <0%> (-23.41%)	⬇️
components/checkbox/nz-checkbox-group.component.ts	90.9% <0%> (-9.1%)	⬇️
components/radio/nz-radio.component.ts	93.61% <0%> (-6.39%)	⬇️
components/switch/nz-switch.component.ts	92.68% <0%> (-4.88%)	⬇️
... and 6 more

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[wzhudev]

LGTM

[wzhudev]

Maybe we can extract dragging logic into an isolated service. May be used by other components in the future.