Convert viewer to Lit component.

src/scss/card.scss

@@ -50,8 +50,6 @@
   padding: 10%;
 }
 
-
-
 video, img {
   display: block;
 }
@@ -80,41 +78,3 @@ webrtc-camera ha-card {
   border-radius: 0px;
   background-color: var(--secondary-background-color, black);
 }
-
-.frigate-media-controls {
-  position: absolute;
-  z-index: 1;
-  overflow: hidden;
-}
-.frigate-media-controls.previous {
-  left: 45px;
-}
-.frigate-media-controls.next {
-  right: 45px;  
-}
-
-.frigate-media-controls.chevrons {
-  top: calc(50% - (40px / 2));
-}
-
-.frigate-media-controls.thumbnails {
-  border-radius: 50%;
-  height: 48px;
-  top: calc(50% - (48px / 2));
-  box-shadow: 0px 0px 30px 1px black;
-  transition: all .2s ease;
-  opacity: 0.8;
-}
-.frigate-media-controls.thumbnails:hover {
-  opacity: 1 !important;
-  height: 72px;
-  top: calc(50% - (72px / 2));
-}
-
-.frigate-media-controls.previous.thumbnails:hover {
-  left: 33px;
-}
-
-.frigate-media-controls.next.thumbnails:hover {
-  right: 33px;
-}