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

types/pw-ext-hook.d.ts

@@ -0,0 +1,21 @@
+interface PWExtensionRequestInfo {
+  method: string
+  url: string
+  data: any & { wantsBinary: boolean }
+}
+
+interface PWExtensionResponse {
+  data: any
+  config?: {
+    timeData?: {
+      startTime: number
+      endTime: number
+    }
+  }
+}
+
+interface PWExtensionHook {
+  getVersion: () => { major: number, minor: number }
+  sendRequest: (req: PWExtensionRequestInfo) => Promise<PWExtensionResponse>
+  cancelRunningRequest: () => void
+}

types/ts-utils.d.ts

@@ -0,0 +1 @@
+export type KeysMatching<T, V> = {[K in keyof T]-?: T[K] extends V ? K : never}[keyof T];

types/window.d.ts

@@ -0,0 +1,7 @@
+export {}
+
+declare global {
+  interface Window {
+    __POSTWOMAN_EXTENSION_HOOK__: PWExtensionHook
+  }
+}