fix: animate toggle switch icon

[ShGKme]

☑️ Resolves

• Fix: [NcCheckboxRadioSwitch, NcFormBoxSwitch] Animate switch toggle #8043

🖼️ Screenshots

🏁 Checklist

• ⛑️ Tests are included or are not applicable
• 📘 Component documentation has been extended, updated or is not applicable
• 2️⃣ Backport to stable8 for maintained Vue 2 version or not applicable

[ShGKme]

/backport to stable8

[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 53.28%. Comparing base (3736e0e) to head (331fc27).
⚠️ Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
...mponents/NcIconToggleSwitch/NcIconToggleSwitch.vue	25.00%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8045      +/-   ##
==========================================
+ Coverage   53.25%   53.28%   +0.02%     
==========================================
  Files         101      102       +1     
  Lines        3145     3147       +2     
  Branches      872      871       -1     
==========================================
+ Hits         1675     1677       +2     
+ Misses       1232     1231       -1     
- Partials      238      239       +1     

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[Antreesy]

Tested in app, looks good

[susnux]

Maybe expose it just like NcLoadingIcon?

[ShGKme]

IMO, existing components should cover all the cases of toggle switches. Loading icon, in contrast, is used directly in most of the cases because we don't have any alternatives like loading states of containers/buttons/inputs.