Some new feature suggestions on iPadOS

[SuperKenVery]

Some of my thoughts to add to the roadmap:

• Bezier curve, to make the line look more natural
• Apple Pencil has a higher refresh rate than touch screen, and we should make use of that

These are very common things to have for a note app on iOS.

And some longer-term targets I would propose:

• Infinite large paper, both horizontal and vertical, just like OneNote.

I really appreciate your work! I've been wanting an open source note app on iPad and finally here's one!