Places module - Avoid zooming to maxZoom level when clicking sidebar entry

[ddrury]

Avoid use of markerCluster function zoomToShowLayer but still spiderfy cluster when necessary but set a sensible zoom level first. Uses adaptation of code found on the internet ~~written by the markerCluster author.~~

I'd really like to get rid of the spiderfyDelay timeout but I've tried using map & markercluster events (eg moveend, animationend) and promises (which I'm a novice at) but none work - suggestions welcome.

Update: I've discovered that map.setView doesn't always trigger moveend or zoomend events, however, changing to map.flyTo and catching zoomend event only alllows the timeout to be reduced by half not removed completely.

[codecov[bot]]

Codecov Report

Merging #4208 (0ee08b4) into main (815856a) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##               main    #4208   +/-   ##
=========================================
  Coverage     31.81%   31.81%           
  Complexity    11084    11084           
=========================================
  Files          1090     1090           
  Lines         39077    39077           
=========================================
  Hits          12431    12431           
  Misses        26646    26646           

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