Fix: replace NcMultiselect with NcSelect

[hamza221]

fix #5320

[ChristophWurst]

Before/after screenshot for the lazy people (me) pls :)

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.09 🎉

Comparison is base (1c029d1) 22.27% compared to head (236a14a) 22.36%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #5323      +/-   ##
============================================
+ Coverage     22.27%   22.36%   +0.09%     
  Complexity      359      359              
============================================
  Files           236      236              
  Lines         11552    11554       +2     
  Branches       2248     2250       +2     
============================================
+ Hits           2573     2584      +11     
+ Misses         8979     8970       -9     

Flag	Coverage Δ
javascript	14.00% <100.00%> (+0.11%)	⬆️
php	64.40% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
.../AppNavigation/EditCalendarModal/SharingSearch.vue	0.00% <ø> (ø)
src/mixins/EditorMixin.js	3.66% <100.00%> (+3.66%)	⬆️

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[ChristophWurst]

/backport to stable4.4

[hamza221]

BEFORE:

AFTER:

[ChristophWurst]

Looks really nice!