fix(appointments): round up timeslots to next pretty time

[miaulalala]

No description provided.

[miaulalala]

/backport to stable4.6

[codecov]

Codecov Report

Attention: 7 lines in your changes are missing coverage. Please review.

Comparison is base (566265c) 24.49% compared to head (37b2047) 24.50%.
Report is 3 commits behind head on main.

Files	Patch %	Lines
src/views/EditSidebar.vue	0.00%	7 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #5747      +/-   ##
============================================
+ Coverage     24.49%   24.50%   +0.01%     
  Complexity      423      423              
============================================
  Files           243      243              
  Lines         10938    10944       +6     
  Branches       1797     1798       +1     
============================================
+ Hits           2679     2682       +3     
- Misses         8259     8262       +3     

Flag	Coverage Δ
javascript	15.43% <0.00%> (-0.01%)	⬇️
php	61.97% <ø> (+0.05%)	⬆️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[st3iny]

I tested it and it works as I would expect it to work.

Unit test failures seem to be related though.