fix!: last named segment should be required

[pi0]

resolves #119 and related comment in #84 (comment)

I made a twitter survey and it seems most of people expect /blog/* to also match /blog but as another fair point, /blog/:id should not match /blog by default because we are expecting a named parameter.

This PR does a middleground solution to only do edge matching for optional last segments (* and **)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.09%. Comparing base (c13c7ee) to head (51f14f2).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #123      +/-   ##
==========================================
+ Coverage   99.06%   99.09%   +0.02%     
==========================================
  Files           7        7              
  Lines         321      331      +10     
  Branches      103      103              
==========================================
+ Hits          318      328      +10     
  Misses          3        3              

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