Improve documentation and comments in Dinic algorithm

[Vaibhav34-2006]

Updated documentation for Dinic's algorithm, improving clarity and consistency. Adjusted variable names for better readability.

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized it.
• All filenames are in PascalCase.
• All functions and variable names follow Java naming conventions.
• All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• All new code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.87%. Comparing base (746457c) to head (79aac9b).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #7163      +/-   ##
============================================
- Coverage     78.87%   78.87%   -0.01%     
  Complexity     6828     6828              
============================================
  Files           766      766              
  Lines         22607    22604       -3     
  Branches       4444     4443       -1     
============================================
- Hits          17831    17828       -3     
  Misses         4064     4064              
  Partials        712      712              

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