Add Feature: Search and Filter Items in Shopping List App

[kamal126]

Title: Add Feature: Search and Filter Items in Shopping List App

Description

This pull request introduces a new feature to the Shopping List application that allows users to search for items by name and filter items by category. This enhancement improves user experience by making it easier to manage large shopping lists.

Related Issues

• Resolves User Interface Improvements #5 (Issue: Need for search functionality)
• Resolves Button Activation State #7 (Issue: Add category filtering)

Changes Made

• Implemented a search bar that allows users to filter items by name.
• Added a dropdown menu for filtering items based on categories (Grocery, Electronics, etc.).
• Updated the main application UI to accommodate new features.
• Modified the JSON file structure to store category data.

How to Test

1. Pull the latest changes from the repository.
2. Run the application using python shopping_list.py.
3. Try adding multiple items under different categories.
4. Use the search bar to find specific items.
5. Use the category filter to view items based on selected categories.
6. Verify that the total cost updates correctly after applying filters.

Notes

• Ensure that all tests pass before merging.
• Any feedback or suggestions for improvements are welcome!