Handle selecting elements from toolbar

[grzesta05]

Right now, in ToolbarTab, new objects are created on position (0,0) on the canvas.

function addObject<Temp extends SimulationObject>(object: new (...args: any) => Temp): void {
        setObjectsToRender((prev) => [...prev, new object(0, 0, 0)]);
    }

We want them to be created on user's mouse click somewhere on the canvas, with position on this click.