More lazy fixes and preprocessing functions

[bouweandela]

Description

Various small improvements in lazy data computations by using coordinate methods has_bounds(), core_points(), core_bounds() where possible.

Related to #674 and #42

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (6f30fa6) 93.82% compared to head (9bad950) 93.97%.
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2325      +/-   ##
==========================================
+ Coverage   93.82%   93.97%   +0.15%     
==========================================
  Files         240      240              
  Lines       13289    13273      -16     
==========================================
+ Hits        12468    12473       +5     
+ Misses        821      800      -21     

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[schlunma]

Thanks Bouwe, LGTM! Just some minor comments from my side.

[valeriupredoi]

brill work, fellas 🍻