Splitscreen Vertical Add icon

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24"><path fill="currentColor" d="M19 22.23V20h-2.23v-1H19v-2.23h1V19h2.23v1H20v2.23zM5.615 20q-.666 0-1.14-.475Q4 19.051 4 18.385V5.615q0-.666.475-1.14Q4.949 4 5.615 4H9.02q.667 0 1.141.475q.475.474.475 1.14v12.77q0 .666-.475 1.14Q9.686 20 9.02 20zm8.793-.173q-.471-.154-.747-.546q-.276-.393-.276-.896V5.615q0-.666.474-1.14Q14.334 4 15 4h3.385q.666 0 1.14.475q.475.474.475 1.14v8.812q-.154-.021-.308-.032q-.154-.01-.307-.01q-1.927 0-3.342 1.324q-1.414 1.324-1.62 3.25q-.038.212-.033.43q.006.22.018.438"/></svg>