PS-1133 Feature/mv3 browser observable memory caching (#3245)

* Create sessions sync structure

* Add observing to session-syncer

* Do not run syncer logic in decorator tests

* Extract test constants

* Change Observables to BehaviorSubject

* Move sendMessage to static method in BrowserApi

* Implement session sync

* only watch in manifest v3

* Use session sync on folder service

* Add array observable sync

* Bypass cache on update from message

* Create feature and dev flags for browser

* Protect development-only methods with decorator

* Improve todo comments for long-term residency

* Use class properties in init

* Do not reuse mocks

* Use json (de)serialization patterns

* Fix failing session storage in dev environment

* Split up complex EncString constructor

* Default false for decrypted session storage

* Try removing hydrate EncString method

* PR review

* PR test review

libs/common/spec/models/view/folderView.spec.ts

@@ -0,0 +1,22 @@
+import { FolderView } from "@bitwarden/common/models/view/folderView";
+
+describe("FolderView", () => {
+  describe("fromJSON", () => {
+    it("initializes nested objects", () => {
+      const revisionDate = new Date("2022-08-04T01:06:40.441Z");
+      const actual = FolderView.fromJSON({
+        revisionDate: revisionDate.toISOString(),
+        name: "name",
+        id: "id",
+      });
+
+      const expected = {
+        revisionDate: revisionDate,
+        name: "name",
+        id: "id",
+      };
+
+      expect(actual).toMatchObject(expected);
+    });
+  });
+});