* Added Circle tool as alternative function of Rectangle tool

* change toggle function to work with new icon structure and toggle name

* split circle into separate tool and added ellipse as secondary function. Also added server side rendering for svg export

* change ellipse to be default

* change circle behaviour to same as inkscape

* toggle to alternative while holding shift

* append to drawing area instead of svg root

* don't update shape after it has been drawn

* Stop logging all rectangles

* Remove es6

* Remove more es6

* Fix a few bugs with circle to ellipse toggling

* Calculate the circle params at creation time, not at rendering time

* Make the behavior of the shift key consistent

When shift is pressed, the current function is reversed: the circle tool draws an ellipse and the ellipse tool draws a circle.
This makes the tool easier to grasp.

* Add required translations

* german translation

* Update the shape immediately when pressing shift

* Fix server-side ellipse rendering

* Add a test for the circle tool

Co-authored-by: Robert Beach <rdbeach@gmail.com>
Co-authored-by: Ophir LOJKINE <pere.jobs@gmail.com>

* Added cursors

* Prepare cursor code for future settings to toggle cursors on or off.
Let cursor be the color the person has currently selected

* fix cursor on mobile (still won't display it in most cases as there is no hover on mobile but at least it won't throw errors)

* use correct size for cursor

* throttle cursor update rate to dramatically improve performance by eliminating congestion

* fix remote cursor size on desktop

* show own cursor by default and renove offset

* use svg as mouse cursor for pencil to be able to apply a reduced opacity to it and view our cursor

* don't throttle local cursor

* throttle local cursor at an independent higher rate. This could be made user adjustable for low power devices

* remove let and const from client-side code

* get emit count and emit count period from configuration

* reduce network cursor updates a lot to prevent instantly getting banned with the current defaults

* prevent eraser from deleting cursors

* use group inside of svg as drawing area and only delete elements inside it with the eraser

* use transform: translate to move cursors around instead of manipulating x and y directly

* fix: add socket ids to cursor messages

* fix incorrect remote cursor scaling and make local cursor visible again after it has been moved after being hidden due to inactivity

* create cursors in a proper fashion and keep them in a separate group

* scaling has been fixed in a1a5580

* move duplicated cursor creation code to function

* show cursors above content

* pass some of ther server configuration through to the client

* fix bug introduced in a833ce9

* allocate at most half of the allowed traffic to cursor updates

* remove debugging leftover

* use feature detection instead of ua sniffing

Co-Authored-By: Ophir LOJKINE <ophir.lojkine@auto-grid.com>

* fix regression where local cursor color was not updated on color change

* Define the cursor as a tool

* Remove the cursor tool from the UI

* Throttle remote cursor updates, not local ones

* Do not increment notification count on cursor move

* Use only one pencil icon

Use the same image for the pencil icon in the menu
and the pencil cursor that appears while drawing

* Add a test for the new cursor feature

* only stop drawing remote cursor when using some tools and always draw local cursor

* increase idle period before hiding cursor

* change idle duration back and set whether a cursor should be sent when using a tool in the respective tool

Co-authored-by: Robert Beach <rdbeach@gmail.com>
Co-authored-by: Ophir LOJKINE <ophir.lojkine@auto-grid.com>
Co-authored-by: ophir <pere.jobs@gmail.com>

Closes #5

Use Unicode icons instead

Use Unicode icons instead