Change Players icon, to distinguish it from Internet Radios

ui/src/player/index.js

@@ -1,9 +1,9 @@
-import RadioIcon from '@material-ui/icons/Radio'
+import { BsFillMusicPlayerFill } from 'react-icons/bs'
 import PlayerList from './PlayerList'
 import PlayerEdit from './PlayerEdit'
 
 export default {
   list: PlayerList,
   edit: PlayerEdit,
-  icon: RadioIcon,
+  icon: BsFillMusicPlayerFill,
 }