Downgrade Documenter to "< 0.27"

[alfredclwong]

something in 0.27 is causing our doc build to hang. not really worth chasing down (i've tried).

[codecov-commenter]

Codecov Report

Merging #261 (57795d2) into main (776e788) will increase coverage by 0.07%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #261      +/-   ##
==========================================
+ Coverage   54.97%   55.05%   +0.07%     
==========================================
  Files          72       72              
  Lines        6708     6699       -9     
==========================================
  Hits         3688     3688              
+ Misses       3020     3011       -9     

Impacted Files	Coverage Δ
src/Vis/Visualization.jl	9.01% <0.00%> (+0.14%)	⬆️
src/Geometry/CSG/CSG.jl	83.52% <0.00%> (+0.31%)	⬆️

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[BrianGun]

@alfredclwong did this fix the problem? I noticed that all the documentation files are commented out. Does the documentation build when they are uncommented?

[alfredclwong]

@alfredclwong did this fix the problem? I noticed that all the documentation files are commented out. Does the documentation build when they are uncommented?

I've just been chucking a load of scenarios at the server to see what works. Seems like I've found the fix - will clean this up and request a review when it's confirmed.