Chat Bubble Filled icon

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24"><g fill-opacity="0" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"><path fill="currentColor" stroke-dasharray="68" stroke-dashoffset="68" d="M3 19.5V4C3 3.44772 3.44772 3 4 3H20C20.5523 3 21 3.44772 21 4V16C21 16.5523 20.5523 17 20 17H5.5z"><animate fill="freeze" attributeName="stroke-dashoffset" dur="0.6s" values="68;0"/><animate fill="freeze" attributeName="fill-opacity" begin="0.6s" dur="0.5s" values="0;1"/></path></g></svg>