Ps/pm 5533/migrate decrypted user key (#7970)

* Move user key memory state to state providers

Note: state service observable change is because these updates are no longer internal to the class, but reporter directly to account service through crypto service on update of a user key

* remove decrypted user key state

Note, we're going to move the encrypted cryptoSymmetric key (and associated master key encrypted user keys)  as part of the master key service creation. Crypto service will no longer be responsible for the encrypted forms of user key.

* Deprecate notices belong on abstraction

* Allow for single-direction status updates

This is necessary since we don't want to have to guarantee that the update to logged out occurs after the update to locked.

* Remove deprecated subject

It turns out the set for cryptoMasterKey was also unused 🎉

libs/common/src/platform/abstractions/crypto.service.ts

@@ -12,10 +12,13 @@ import { EncString } from "../models/domain/enc-string";
 import { SymmetricCryptoKey } from "../models/domain/symmetric-crypto-key";
 
 export abstract class CryptoService {
+  activeUserKey$: Observable<UserKey>;
   /**
    * Sets the provided user key and stores
    * any other necessary versions (such as auto, biometrics,
    * or pin)
+   *
+   * @throws when key is null. Use {@link clearUserKey} instead
    * @param key The user key to set
    * @param userId The desired user
    */