fix: removed default max length for serialize function

[lucaseduoli]

This pull request includes several changes to the src/backend/base/langflow/serialization/serialization.py file to improve code readability by reformatting function definitions and long lines. The most important changes include reformatting function signatures and improving the readability of conditional statements.

Improvements to code readability:

• Reformatted function definitions to place parameters on separate lines for better readability. (_serialize_document, _serialize_pydantic, _serialize_pydantic_v1, _serialize_list_tuple, _serialize_dataframe, _serialize_series, _serialize_numpy_type, _serialize_dispatcher, serialize, serialize_or_str) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11]
• Improved readability of conditional statements by breaking long lines into multiple lines. (_truncate_value, _serialize_dispatcher, serialize) [1] [2] [3] [4]