Disable Pointer-Events for TimeMarker

[angelaki]

Just a small patch / merging welcome :)

Disable the pointer-events for the time-marker (since the default implementation has no click handler and I don't see any point in it). Use-case is rare but right now clicking an appointment underneath the marker gets blocked by it.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.91%. Comparing base (a34ed45) to head (e20449e).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1788   +/-   ##
=======================================
  Coverage   97.91%   97.91%           
=======================================
  Files          42       42           
  Lines         671      671           
  Branches      145      145           
=======================================
  Hits          657      657           
  Misses          1        1           
  Partials       13       13           

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