Equalise the length of non-numeric tokens before sorting

[El-Gor-do]

Added 2 WindowsExplorer test cases to verify that issue 121 is fixed

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.54%. Comparing base (3a488d4) to head (a53f421).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #122      +/-   ##
==========================================
+ Coverage   93.33%   93.54%   +0.21%     
==========================================
  Files           2        2              
  Lines          90       93       +3     
  Branches       32       33       +1     
==========================================
+ Hits           84       87       +3     
  Misses          2        2              
  Partials        4        4              

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