Frontent dev env (#247)

* Added frontend development files/environment

* More items-categories related removals

* Improvements in pages templates (inc. static pages)

* Improvements in video player

* Added empty home page message + cta

* Updates in media, playlist and management pages

* Improvements in material icons font loading

* Replaced media & playlists links in frontend dev-env

* frontend package version update

* chnaged frontend dev url port

* static files update

* Changed default position of theme switcher

* enabled frontend docker container

frontend/src/static/js/pages/MediaVideoPage.js

@@ -0,0 +1,14 @@
+import React from 'react';
+import { SiteConsumer } from '../utils/contexts/';
+import VideoViewer from '../components/media-viewer/VideoViewer';
+import { _VideoMediaPage } from './_VideoMediaPage';
+
+export class MediaVideoPage extends _VideoMediaPage {
+  viewerContainerContent(mediaData) {
+    return <SiteConsumer>{(site) => <VideoViewer data={mediaData} siteUrl={site.url} inEmbed={!1} />}</SiteConsumer>;
+  }
+
+  mediaType() {
+    return 'video';
+  }
+}