Speed up init() by >= 2x

Lazy load the WebTorrent, Chromecast, and Airplay modules

renderer/index.css

@@ -49,34 +49,6 @@ table {
   background-color: rgb(40, 40, 40);
 }
 
-.loading {
-  display: flex;
-  flex-direction: column;
-  justify-content: center;
-  position: absolute;
-  left: 0;
-  top: 0;
-  right: 0;
-  bottom: 0;
-}
-
-.loading .icon {
-  font-size: 42px;
-  display: block;
-  text-align: center;
-  animation: spin-ccw 2s infinite linear;
-}
-
-@keyframes spin {
-  from { transform: rotate(0deg); }
-  to   { transform: rotate(360deg); }
-}
-
-@keyframes spin-ccw {
-  from { transform: rotate(360deg); }
-  to   { transform: rotate(0deg); }
-}
-
 @keyframes fadein {
   from { opacity: 0; }
   to   { opacity: 1; }