[stable8] fix: animate toggle switch icon

[backportbot]

Backport of #8045

Warning, This backport's changes differ from the original and might be incomplete ⚠️

Todo

• Review and resolve any conflicts
• Amend HEAD commit to remove the line stating to skip CI

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[codecov]

Codecov Report

❌ Patch coverage is 65.00000% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 45.54%. Comparing base (253e2ee) to head (f227c7b).
⚠️ Report is 2 commits behind head on stable8.

Files with missing lines	Patch %	Lines
...mponents/NcIconToggleSwitch/NcIconToggleSwitch.vue	62.50%	6 Missing ⚠️
src/components/NcFormBoxSwitch/NcFormBoxSwitch.vue	50.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           stable8    #8047      +/-   ##
===========================================
+ Coverage    45.48%   45.54%   +0.06%     
===========================================
  Files          192      193       +1     
  Lines         4769     4797      +28     
  Branches      1172     1176       +4     
===========================================
+ Hits          2169     2185      +16     
- Misses        2508     2519      +11     
- Partials        92       93       +1     

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