Updated UI elements and improved data pLotting

[Amanmahe]

@lorforlinux,

I have made significant updates to the repository, including improvements to both the plotting logic and the user interface. Here is a summary of the changes:

Plotting Logic:

• Previously, the plot would shift as new data streamed in, showing a continuous data flow.
• Now, the plot refreshes by overwriting old data instead of shifting. This change ensures smoother performance and keeps the latest data always clearly visible.

User Interface Changes:

• Removed the border around the canvas for a cleaner and more streamlined appearance.
• Updated background colors and introduced curved buttons for the canvas, enhancing the visual appeal and organization of the app.
• Improved the UI for the steps feature, making it more user-friendly.
• These enhancements are intended to improve the user experience and the efficiency of data visualization.

Please review the changes and let me know if you have any feedback or if there are any additional modifications required before merging. You can check the project https://amanmahe.github.io/Chords-Web/

Thank you.

[lorforlinux]

@Amanmahe This is awesome! you are doing amazing 💯

Thank you so much for your contribution, I am merging this now.