Canvases

### Describe the feature

A mindmap, another type of note. You create mini notes or mini browsers and connect them with arrows and move them around in a canvas.

### It should be implemented because

It allows people to build a second brain, research better and also because Haptic currently doesn't have canvases it's a dealbreaker for a lot of people.

### Additional context

_No response_

### Would you like to work on this issue?

None