Updated the UI for a more polished and modern look.

[sarcaxticlarka]

Fixes Issue #1070

Description: This pull request introduces a series of enhancements to elevate the visual appeal and functionality of the calculator. The update includes a revamped user interface with a fresh and modern design. I've made adjustments to the calculator.css code to optimize the layout, improve overall aesthetics, and ensure a better user experience.

Key Changes:

UI Overhaul: The user interface has been given a facelift to provide a more contemporary and visually pleasing design.

Calculator.css Optimization: I've fine-tuned the calculator.css code to enhance styling, ensuring consistency and a polished look across different devices.

Improved Readability: Adjustments have been made to improve the readability of the calculator, making it more user-friendly.

Feel free to review the changes, and let me know if there are any additional modifications or adjustments needed. This update aims to make the calculator not only functional but also visually appealing.

📷 Screenshots

now it look like this