Adds a fast basket endpoint and functions - #21

…package prices

This commit adds a new management command `pregenerate_prices.py` that pregenerates package prices. The command retrieves a full list of countries that have currencies and calculates the minimum and maximum prices for each package and country combination. The results are stored in a dictionary `package_list` and printed to the console. This command will be useful for generating price data for packages in advance.

… readability and maintainability

…iew to filter out unwanted data

…rmance

…ew to improve code readability and maintainability

…d and causing confusion

…ew to improve code readability and maintainability

…rove readability and maintain consistency

…play multiple contributors and their institutions

…rying works with related contributions

…r better performance

…ormance and reduce database queries in all_books view

…or to improve performance

…int to 'summary_meta_package' instead of 'summary_package_initiative' for consistency and clarity

…m the dropdown menu

🔧 fix(views.py): remove commented out code that was no longer needed

…rove performance and reduce database queries in ThothWorkManager

🔀 refactor(views.py): remove unnecessary filter condition in all_books view

…l to improve accuracy and readability

…obile view to improve readability and user experience

…o improve readability and aesthetics

🎨 style(style.css): update font family and size for various elements to improve consistency and aesthetics
✨ feat(index.html): add pill buttons to build subscription, search catalogue, and apply for membership sections for better user experience

…t key in col 4 body section

…y are clickable.

Added updates to docs

Add a new option to filter initiatives from the selectable list.

Model translations wip