feat: add OS contexts

[rawkode]

Co-authored-by: sid.palas@gmail.com

[codecov-commenter]

Codecov Report

Merging #111 (de70712) into main (88ab042) will increase coverage by 0.90%.
The diff coverage is 89.65%.

@@            Coverage Diff             @@
##             main     #111      +/-   ##
==========================================
+ Coverage   35.15%   36.05%   +0.90%     
==========================================
  Files          40       41       +1     
  Lines        1337     1348      +11     
==========================================
+ Hits          470      486      +16     
+ Misses        867      862       -5     

Impacted Files	Coverage Δ
src/contexts/mod.rs	0.00% <0.00%> (ø)
src/contexts/os.rs	96.29% <96.29%> (ø)
src/actions/package/install.rs	29.03% <0.00%> (-4.31%)	⬇️
src/actions/file/link.rs	33.33% <0.00%> (-3.26%)	⬇️
src/atoms/file/chown.rs	53.84% <0.00%> (-3.08%)	⬇️
src/actions/directory/copy.rs	29.03% <0.00%> (-2.22%)	⬇️
src/actions/file/copy.rs	16.66% <0.00%> (-1.52%)	⬇️
src/atoms/file/copy.rs	74.41% <0.00%> (-1.14%)	⬇️
src/main.rs	0.00% <0.00%> (ø)

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