Changed to not initialize neo4j first

[isamu]

Summary by CodeRabbit

• Refactor: Improved the connection process to the Neo4j database for enhanced reliability. The software now checks for database credentials before attempting to connect, reducing the risk of connection errors. This change is behind-the-scenes and should not affect the user experience directly, but it contributes to overall system stability and performance.

[coderabbitai[bot]]

Walkthrough

The code has been refactored to improve the initialization and connection to the Neo4j database. The changes include the creation of a new function init_db() that handles the database initialization and connection, enhancing the code's modularity and maintainability.

Changes

File	Summary
main.py	Refactored to move the initialization of the Neo4j database into a separate function init_db(). This function checks for Neo4j credentials and connects to the database if the credentials are provided. The neo4j_driver variable is now assigned the return value of the init_db() function and is used to establish a connection with the Neo4j database.

🐇

In the land of code, where logic intertwines,

A rabbit hopped and tweaked some lines.

With a function new, and a driver too,

The database connection is now easy to do! 🎉

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