Frontend Mentor - Calculator app solution

This is a solution to the Calculator app challenge on Frontend Mentor. Frontend Mentor challenges help you improve your coding skills by building realistic projects.

Overview

Users should be able to:

See the size of the elements adjust based on their device's screen size
Perform mathmatical operations like addition, subtraction, multiplication, and division
Adjust the color theme based on their preference
Bonus: Have their initial theme preference checked using prefers-color-scheme and have any additional changes saved in the browser