Create: Diagram v0.0.3

Added:

• The canvas position (pan) and zoom level are now saved when closing the diagram and restored upon reopening.

Changed:

• Bézier connection curves are now rendered much smoother and cleaner.
• Optimized data processing and rendering to significantly reduce resource usage while the diagram is open.

Fixed:

• Output tooltips now correctly display their exact drop probability percentage.
• Fixed the Z-index of certain icons that were rendering too high.
• Newly created sticky notes now correctly default to a white background instead of inheriting the active color from the drawing toolbar.
• Fixed an issue where sticky notes could not be resized back to their original height due to an incorrect minimum limit.