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

newstore/localpersistence.ts

@@ -0,0 +1,36 @@
+import { settingsStore, bulkApplySettings, defaultSettings } from "./settings"
+import clone from "lodash/clone"
+import assign from "lodash/assign"
+
+function checkAndMigrateOldSettings() {
+  // Don't do migration if the new settings object exists
+  if (window.localStorage.getItem("settings")) return
+
+  const vuexData = JSON.parse(window.localStorage.getItem("vuex") || "{}")
+  if (vuexData === {}) return
+  
+  const settingsData = clone(defaultSettings)
+  assign(settingsData, vuexData.postwoman.settings)
+
+  window.localStorage.setItem("settings", JSON.stringify(settingsData))
+}
+
+function setupSettingsPersistence() {
+  const settingsData = JSON.parse(window.localStorage.getItem("settings") || "{}")
+
+  if (settingsData) {
+    bulkApplySettings(settingsData)
+  }
+  
+
+  settingsStore.subject$
+    .subscribe(settings => {
+      window.localStorage.setItem("settings", JSON.stringify(settings))
+    })
+}
+
+export function setupLocalPersistence() {
+  checkAndMigrateOldSettings()
+
+  setupSettingsPersistence()
+}