[PM-5266] Create Avatar Service (#7905)

* rename file, move, and update imports

* refactor and implement StateProvider

* remove comments

* add migration

* use 'disk-local' for web

* add JSDoc comments

* move AvatarService before SyncService

* create factory

* replace old method with observable in story

* fix tests

* add tests for migration

* receive most recent avatarColor emission

* move logic to component

* fix CLI dependency

* remove BehaviorSubject

* cleanup

* use UserKeyDefinition

* avoid extra write

* convert to observable

* fix tests

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

@@ -359,9 +359,6 @@ export abstract class StateService<T extends Account = Account> {
    * @deprecated Do not call this directly, use ConfigService
    */
   setServerConfig: (value: ServerConfigData, options?: StorageOptions) => Promise<void>;
-
-  getAvatarColor: (options?: StorageOptions) => Promise<string | null | undefined>;
-  setAvatarColor: (value: string, options?: StorageOptions) => Promise<void>;
   /**
    * fetches string value of URL user tried to navigate to while unauthenticated.
    * @param options Defines the storage options for the URL; Defaults to session Storage.