perf(module:switch): reduce change detection cycles

[arturovt]

PR Checklist

• 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

[x] Refactoring (no functional changes, no api changes)

Does this PR introduce a breaking change?

[ ] Yes
[x] No

[zorro-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

Merging #7105 (5083fb1) into master (d9982e9) will decrease coverage by 0.01%.
The diff coverage is 90.00%.

@@            Coverage Diff             @@
##           master    #7105      +/-   ##
==========================================
- Coverage   89.63%   89.61%   -0.02%     
==========================================
  Files         488      488              
  Lines       15873    15885      +12     
  Branches     2584     2582       -2     
==========================================
+ Hits        14227    14236       +9     
- Misses       1014     1016       +2     
- Partials      632      633       +1     

Impacted Files	Coverage Δ
components/switch/switch.component.ts	96.20% <90.00%> (+0.68%)	⬆️
components/core/util/text-measure.ts	89.47% <0.00%> (-1.76%)	⬇️
components/time-picker/time-holder.ts	95.78% <0.00%> (-1.06%)	⬇️

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[simplejason]

LGTM

[zhenzhenChange]

Why was this change not added to the changelog?

[simplejason]

Why was this change not added to the changelog?

Is this PR causing any problems? If so, please submit an issue, and of course you are welcome to submit a PR to optimize :)