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

layouts/default.vue

@@ -14,6 +14,9 @@
 </template>
 
 <script>
+import { setupLocalPersistence } from "~/newstore/localpersistence"
+import { performMigrations } from "~/helpers/migrations"
+
 export default {
   beforeMount() {
     let color = localStorage.getItem("THEME_COLOR") || "green"
@@ -24,13 +27,7 @@ export default {
       document.body.classList.add("afterLoad")
     }
 
-    // Migrate old default proxy URL to the new proxy URL (if not set / overridden)
-    if (
-      this.$store.state.postwoman.settings.PROXY_URL &&
-      this.$store.state.postwoman.settings.PROXY_URL === "https://hoppscotch.apollosoftware.xyz/"
-    ) {
-      this.$store.state.postwoman.settings.PROXY_URL = "https://proxy.hoppscotch.io/"
-    }
+    performMigrations()
 
     console.log(
       "%cWe ❤︎ open source!",
@@ -61,6 +58,8 @@ export default {
         }
       })
     }
+
+    setupLocalPersistence()
   },
   beforeDestroy() {
     document.removeEventListener("keydown", this._keyListener)