Refactor UI

[BenWeisz]

Description

Refactor the UI to improve user experience

Changes

• Center the canvas by default
• Move the image info into a fixed panel
• Make the image draggable when zoomed in

Todo

• [x] Merge #3

[BenWeisz]

@nagata-yoshiteru I changed the default colour to a salmon colour for now. Let me know what you think 😃

[nagata-yoshiteru]

Hi, @BenWeisz ! Thanks for your quick response, and your new UI design seems great! I tried your code and added two minor changes like the image:

• change the mouse cursor when it is on a button
• add Zoom level display

Thanks!

[weiszben]

Awesome, I quite like that, Im gonna merge this in now