Export current document as SVG when pressing Ctrl+Shift+S (#160)

* Export current document when pressing Ctrl+Shift+S

* Use a blob for download

* Add Ctrl + E shortcut, match on lower case

* Don't mount element in DOM

* Polish some keybindings

* Add initialization for MappingEntries

* Implement svg coloring

* Add newline after svg tag

* Add spaces to svg style format

* Fix more svg formatting

* Add space before />

* Remove duplicate whitespace

core/document/src/shape_points.rs

@@ -39,6 +39,9 @@ impl ShapePoints {
 	}
 }
 
+// TODO: The display impl and iter impl share large amounts of code and should be refactored. (Display should use the Iterator)
+// TODO: Once that is done, the trailing space from the display impl should be removed
+// Also consider implementing index
 impl std::fmt::Display for ShapePoints {
 	fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 		fn rotate(v: &Vec2, theta: f64) -> Vec2 {