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/scripts/.eslintrc.js

@@ -0,0 +1,36 @@
+module.exports = {
+    "extends": ["eslint:recommended"],
+    "env": { "es6": true, "browser": true, "node": true },
+    "parserOptions": {
+        "sourceType": "module",
+        "ecmaVersion": 2018
+    },
+    "rules": {
+        "indent": ["error", "tab"],
+        "linebreak-style": ["error", "unix"],
+        "quotes": ["error", "single"],
+        "semi": ["error", "always"],
+        'no-empty': ["error", { "allowEmptyCatch": true }],
+        'no-constant-condition': ["error", { "checkLoops": false }],
+    },
+    "overrides": [{
+        "plugins": [ "@typescript-eslint" ],
+        "parser": "@typescript-eslint/parser",
+        "files": ["**/*.ts", "**/*.tsx"],
+        "extends": [
+            "eslint:recommended",
+            "plugin:@typescript-eslint/eslint-recommended",
+            "plugin:@typescript-eslint/recommended"
+        ],
+        "parserOptions": {
+            "ecmaFeatures": { "jsx": true },
+            "ecmaVersion": 2018,
+            "sourceType": "module",
+            "project": "./tsconfig.json"
+        },
+        "rules": {
+            "no-mixed-spaces-and-tabs": ["error", "smart-tabs"],
+            "@typescript-eslint/no-var-requires": "off"
+        },
+    }]
+}