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/packages/vjs-plugin/config/jest.config.js

@@ -0,0 +1,8 @@
+module.exports = {
+    "name": "",
+    "verbose": false,
+    "collectCoverage": true,
+    "collectCoverageFrom": ["./src/**"],
+    "coverageDirectory": "./out/coverage/",
+    "testPathIgnorePatterns": ["/__tests__/functions.js" ],
+};