Make ignore behavior match documentation

[robhanlon22]

The configuration doc says this under the :ignore bullet point:

...patterns are matched against the entire (relative) file path...

However, this is not the case in the implementation, as cljstyle.config/ignored? uses the canonical path, rather than a relatived version of it.

To match the docs, this change relativizes the canonical path to the file against the JVM working dir. Hopefully this is the intended behavior :)

[codecov-commenter]

Codecov Report

Merging #91 (6514f77) into main (1f58e2e) will increase coverage by 0.02%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #91      +/-   ##
==========================================
+ Coverage   89.82%   89.85%   +0.02%     
==========================================
  Files          20       20              
  Lines        1907     1912       +5     
  Branches       60       60              
==========================================
+ Hits         1713     1718       +5     
  Misses        134      134              
  Partials       60       60              

Impacted Files	Coverage Δ
src/cljstyle/config.clj	81.30% <100.00%> (+0.41%)	:arrow_up:

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