Ps 1291/apply to from json pattern to state (#3425)

* Clean up dangling behaviorSubject

* Handle null in utils

* fix null check

* Await promises, even in async functions

* Add to/fromJSON methods to State and Accounts

This is needed since all storage in manifest v3 is key-value-pair-based
and session storage of most data is actually serialized into an
encrypted string.

* Simplify AccountKeys json parsing

* Fix account key (de)serialization

* Remove unused DecodedToken state

* Correct filename typo

* Simplify keys `toJSON` tests

* Explain AccountKeys `toJSON` return type

* Remove unnecessary `any`s

* Remove unique ArrayBuffer serialization

* Initialize items in MemoryStorageService

* Revert "Fix account key (de)serialization"

This reverts commit b1dffb5c2c, which was breaking serializations

* Move fromJSON to owning object

* Add DeepJsonify type

* Use Records for storage

* Add new Account Settings to serialized data

* Fix failing serialization tests

* Extract complex type conversion to helper methods

* Remove unnecessary decorator

* Return null from json deserializers

* Remove unnecessary decorators

* Remove obsolete test

* Use type-fest `Jsonify` formatting rules for external library

* Update jsonify comment

Co-authored-by: @eliykat

* Remove erroneous comment

* Fix unintended deep-jsonify changes

* Fix prettierignore

* Fix formatting of deep-jsonify.ts

Co-authored-by: Thomas Rittson <trittson@bitwarden.com>
Co-authored-by: Thomas Rittson <31796059+eliykat@users.noreply.github.com>

libs/common/src/services/stateMigration.service.ts

@@ -12,7 +12,13 @@ import { OrganizationData } from "../models/data/organizationData";
 import { PolicyData } from "../models/data/policyData";
 import { ProviderData } from "../models/data/providerData";
 import { SendData } from "../models/data/sendData";
-import { Account, AccountSettings, AccountSettingsSettings } from "../models/domain/account";
+import {
+  Account,
+  AccountSettings,
+  AccountSettingsSettings,
+  EncryptionPair,
+} from "../models/domain/account";
+import { EncString } from "../models/domain/encString";
 import { EnvironmentUrls } from "../models/domain/environmentUrls";
 import { GeneratedPasswordHistory } from "../models/domain/generatedPasswordHistory";
 import { GlobalState } from "../models/domain/globalState";
@@ -314,10 +320,10 @@ export class StateMigrationService<
       passwordGenerationOptions:
         (await this.get<any>(v1Keys.passwordGenerationOptions)) ??
         defaultAccount.settings.passwordGenerationOptions,
-      pinProtected: {
+      pinProtected: Object.assign(new EncryptionPair<string, EncString>(), {
         decrypted: null,
         encrypted: await this.get<string>(v1Keys.pinProtected),
-      },
+      }),
       protectedPin: await this.get<string>(v1Keys.protectedPin),
       settings:
         userId == null