Added a continuous timer that updates during sorting

[hlai1]

Changes

• added a timer box on bottom right of the screen
• timer updates as the sorting algorithm is running and shows the final value

Why (resolves #169 and #170)

• #169 was about implementing the time taken to sort feature, but @LucasPilla explained in the thread of replies how it would be nice to have the time updated with each iteration, rather than just displaying it at the end

How

• Pulled the main branch of the repo
• Added @SunnyWan59's changes to implement a static time box in the bottom right of the screen
• Modified main.py to update display.timeBox and display.time_taken if the display wasn't paused

Testing

• Visually confirmed that the time box was updating for different sorting algorithms

Screenshots

https://github.com/LucasPilla/Sorting-Algorithms-Visualizer/assets/66923491/052105e3-7eef-477e-aa85-7d4a5f233725