[Fix] JSON decoder not properly decoding defaultConfigurationIsVisible in some projects

[tjwio]

Resolves #592

Short description 📝

This PR should fix decoding defaultConfigurationIsVisible (and other booleans) of multiple types of encoding (ie. plist encoded which encodes to a proper boolean or a normal pbxproj which encodes into a string).

Solution 📦

Try decoding it as a string like before, then an int, then a boolean and finally return nil if it cannot. Notice each try is marked with try? so it doesn't actually throw in case there is a type mismatch.

Implementation 👩‍💻👨‍💻

• Fix decoder process for booleans
• Test out in both pbxproj formats

[codecov]

Codecov Report

Merging #593 (6adefa8) into main (82bf5ef) will decrease coverage by 0.02%.
The diff coverage is 57.14%.

@@            Coverage Diff             @@
##             main     #593      +/-   ##
==========================================
- Coverage   84.24%   84.21%   -0.03%     
==========================================
  Files         154      154              
  Lines        8663     8668       +5     
==========================================
+ Hits         7298     7300       +2     
- Misses       1365     1368       +3     

Impacted Files	Coverage Δ
.../Extensions/KeyedDecodingContainer+Additions.swift	80.95% <57.14%> (-12.80%)	⬇️

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[pepicrft]

Thanks for fixing this @tjwio 🙏