[PM-5275] Migrate state in Fido2ClientService to State Providers (#7745)

* added state definition and key definition

* created vault settings service

* created enable passkeys migrations

* created enable passkeys migrations

* renamed the state definition

* created vault settings service

* updated enable passkey key definition

* updated references with vault settings service

* renamed files to avoid conflict

* removed set and get enable passkeys from state service

* removed comment

* fixed comments

* added readonly keyword

* removed service registartion from service module

* removed readonly keyword from abstract class

* swicted to used optional chaining

* renamed files

* added disk-local argument for web

libs/common/src/vault/abstractions/vault-settings/vault-settings.service.ts

@@ -0,0 +1,17 @@
+import { Observable } from "rxjs";
+/**
+ * Service for managing vault settings.
+ */
+export abstract class VaultSettingsService {
+  /**
+   * An observable monitoring the state of the enable passkeys setting.
+   * The observable updates when the setting changes.
+   */
+  enablePasskeys$: Observable<boolean>;
+
+  /**
+   * Saves the enable passkeys setting to disk.
+   * @param value The new value for the passkeys setting.
+   */
+  setEnablePasskeys: (value: boolean) => Promise<void>;
+}