Add visibility option

pico.css

@@ -82,6 +82,9 @@ body {
     height: 100%;
     width: 100%;
 }
+.video-container:not(.visible) {
+    display: none;
+}
 .video-container:not(.square) {
     width: unset !important;
     overflow: scroll;

pico.js

@@ -182,7 +182,7 @@ const hotKey = (e) => {
     }
 }
 const VideoOptions = {
-    available: ['mirror', 'square'],
+    available: ['visible', 'mirror', 'square'],
     getFor: (username) => {
         if(!State.options[username]) {
             State.options[username] = new Set(VideoOptions.available)