Function onMouseMove

app/src/components/render-sub-windows.tsx:52–56

(e: MouseEvent)

                window.removeEventListener("mousemove", onMouseMove);
              };
              const onMouseMove = (e: MouseEvent) => {
                const delta = new Vector(e.clientX, e.clientY).subtract(start);
                const newRect = win.rect.translate(delta);
                SubWindow.update(win.id, { rect: newRect });
              };
              window.addEventListener("mouseup", onMouseUp);
              window.addEventListener("mousemove", onMouseMove);
            }}