Expense tracker project using Python

Requirements:

• Collect user inputs to store expenses by category (e.g., Food, Travel, Entertainment).
• Use dictionaries to organize expenses by category.
• Implement functions to:
  • Calculate the total expenses.
  • Calculate the average expenses.
  • Display expenses by category.

TODO on separate branch:

• Add CSV file support
• Add sqlite
• Fns for input, modify, fetch
• Add graphs
• containerize
• Allow user to modify categories