feat(frontend): add Discovery+ to network slider (#2345)

* feat(frontend): add Discovery+ to network slider

* Make filter consistent with other networks, and update image path

src/components/Discover/NetworkSlider/index.tsx

@@ -50,6 +50,12 @@ const networks: Network[] = [
       'https://image.tmdb.org/t/p/w780_filter(duotone,ffffff,bababa)/tuomPhY2UtuPTqqFnKMVHvSb724.png',
     url: '/discover/tv/network/49',
   },
+  {
+    name: 'Discovery+',
+    image:
+      'https://image.tmdb.org/t/p/w780_filter(duotone,ffffff,bababa)/1D1bS3Dyw4ScYnFWTlBOvJXC3nb.png',
+    url: '/discover/tv/network/4353',
+  },
   {
     name: 'ABC',
     image: