Concentrate options

pico.js

     },
 }
 const Media = {
+    videoSources: ['camera', 'screen', 'none'],
     audioDefaults: {
         noiseSuppresion: true,
         echoCancellation: true,
         if(!State.media[State.username]) {
             return m('.media',
                 m('button', {onclick: Media.turnOn}, 'turn on'),
-                m('select#media-source',
-                    m('option', 'camera'),
-                    m('option', 'screen'),
-                    m('option', 'none'),
-                ),
+                m('select#media-source', Media.videoSources.map(option => m('option', option))),
                 m('label', m('input#mute-check', {type: 'checkbox'}), 'mute'),
             )
         }