Revamp of the Settings State System along with TypeScript support (#1560)

* Add vue-rx, rxjs and lodash as dependencies

* Added vue-rx plugin integration to nuxt config

* Initial settings store implementation

* Add babel plugin for private class properties to for Jest

* Add DispatchingStore test spec

* Initial settings code

* Reactive Streams for fb current user and id token

* Fix typo

* Migrate index and graphql pages to the new store

* Migrate network strategy to the new store

* Fixed Section.vue errors

* Fix getSettingSubject issue

* Migrate fb settings reference in components to the new state system

* Add typings for lodash as dev dependency

* Load setting

* Load initial sync setting values

* Update proxy url

* Add typescript support

* Rewrite Settings store to TypeScript

* Port Settings page to TypeScript as reference

* Move all store migrations to a separate file

* Delete test file for fb.js

* Add ts-jest as dev dependency

* Remove firebase-mock as dependency

* Remove FRAME_COLORS_ENABLED settings value

tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "compilerOptions": {
+    "target": "ES2018",
+    "module": "ESNext",
+    "moduleResolution": "Node",
+    "lib": ["ESNext", "ESNext.AsyncIterable", "DOM"],
+    "esModuleInterop": true,
+    "allowJs": true,
+    "sourceMap": true,
+    "strict": true,
+    "noEmit": true,
+    "baseUrl": ".",
+    "paths": {
+      "~/*": ["./*"],
+      "@/*": ["./*"]
+    },
+    "types": ["@types/node", "@nuxt/types", "nuxt-i18n", "@nuxtjs/toast", "vue-rx"]
+  },
+  "exclude": ["node_modules"]
+}