Consistent handling of directory patterns with trailing slashes in glob patterns

[pranshugupta01]

This PR fixes an issue where ignore patterns with different formats (**/folder, **/folder/, and /folder//*) weren't being handled consistently.
Changes

• Enhanced normalizeGlobPattern function to convert **/folder patterns to /folder/
• This ensures all variants of directory exclusion patterns work identically
• Added tests to verify the consistent behavior across different pattern formats

Problem Solved
Users previously had to know the exact pattern format to use for ignoring directories. Now all three common formats work as expected, improving usability when excluding directories with patterns like:

• --ignore "**/bin"
• --ignore "**/bin/"
• --ignore "**/bin/**/*"

Checklist

• Run npm run test
• Run npm run lint

[pranshugupta01]

Hey @yamadashy PR for fixing #443 and #450

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.07%. Comparing base (60f32be) to head (4a34439).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #453      +/-   ##
==========================================
+ Coverage   85.04%   85.07%   +0.03%     
==========================================
  Files          87       87              
  Lines        4313     4323      +10     
  Branches      843      848       +5     
==========================================
+ Hits         3668     3678      +10     
  Misses        645      645              

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[pranshugupta01]

Hey @yamadashy , please look into this PR once you are available

[yamadashy]

@pranshugupta01
I apologize for the delayed confirmation! I was on an international business trip and couldn't address this properly.

The implementation is perfect with tests included! I've confirmed it works properly on my end as well.

I'll merge this now.

Looking forward to your future contributions!