Refactor State Providers (#8273)

* Delete A Lot Of Code

* Fix Tests

* Create SingleUserState Provider Once

* Update Manual Instantiations

* Fix Service Factory

* Delete More

* Delete Unused `updatePromise`

* `postStorageSave` -> `doStorageSave`

* Update Comment

* Fix jslib-services

libs/common/src/platform/services/environment.service.spec.ts

@@ -45,13 +45,13 @@ describe("EnvironmentService", () => {
     storageServiceProvider = new StorageServiceProvider(diskStorageService, memoryStorageService);
 
     accountService = mockAccountServiceWith(undefined);
+    const singleUserStateProvider = new DefaultSingleUserStateProvider(
+      storageServiceProvider,
+      stateEventRegistrarService,
+    );
     stateProvider = new DefaultStateProvider(
-      new DefaultActiveUserStateProvider(
-        accountService,
-        storageServiceProvider,
-        stateEventRegistrarService,
-      ),
-      new DefaultSingleUserStateProvider(storageServiceProvider, stateEventRegistrarService),
+      new DefaultActiveUserStateProvider(accountService, singleUserStateProvider),
+      singleUserStateProvider,
       new DefaultGlobalStateProvider(storageServiceProvider),
       new DefaultDerivedStateProvider(memoryStorageService),
     );