[PM-11404] Account Management: Prevent a verified user from purging their vault (#11411)

* Update AccountService to include a method for setting the managedByOrganizationId

* Update AccountComponent to conditionally show the purgeVault button based on a feature flag and if the user is managed by an organization

* Add missing method to FakeAccountService

* Remove the setAccountManagedByOrganizationId method from the AccountService abstract class.

* Refactor AccountComponent to use OrganizationService to check for managing organization

* Rename managesActiveUser to userIsManagedByOrganization

* Refactor userIsManagedByOrganization property to be non-nullable in organization data and response models

* Refactor organization.data.spec.ts to include non-nullable userIsManagedByOrganization property

libs/common/src/admin-console/models/data/organization.data.spec.ts

@@ -57,6 +57,7 @@ describe("ORGANIZATIONS state", () => {
         limitCollectionCreationDeletion: false,
         allowAdminAccessToAllCollectionItems: false,
         familySponsorshipLastSyncDate: new Date(),
+        userIsManagedByOrganization: false,
       },
     };
     const result = sut.deserializer(JSON.parse(JSON.stringify(expectedResult)));