Update financeTracker.py

[bhavya2021245]

Description

Variable Naming: 1.Adopted snake_case for all variable and function names. 2.Used more descriptive names to clearly indicate the purpose of each variable.

Error Handling:

1.Wrapped database operations and critical sections in try-except blocks to catch and handle potential exceptions. 2.Added specific error messages to assist in debugging and user notifications.

Related Issue

Fixes # (issue 97)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented on my code, particularly in hard-to-understand areas

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[github-actions[bot]]

🎉🎉 Thank you for your contribution! Your PR #111 has been merged! 🎉🎉