Fix newline regex

[vcarl]

No description provided.

[what-the-diff]

PR Summary

• Refactored Naming for Clarity
  The regex constant previously named DOUBLE_NEWLINE has been renamed to TOO_MANY_NEWLINES for more intuitive understanding.

• Introduced a New Constant
  A new constant named APPROPRIATE_NEWLINES has been introduced to represent the string "\n\n", providing consistency across the codebase.

• Improved Text Formatting Function
  Adjustments were made to the compressLineBreaks function. It now replaces instances of three or more consecutive line breaks with just two, instead of replacing two consecutive line breaks with one, offering better text formatting.