[PM-4031] Add libs/importer to browser and desktop (#6373)

* Import libs/importer and instantiate ImportService

* Create ImportApi and ImportService factories

* Add libs/importer to desktop

* [PM-4075] Setup Feature Flag for Browser Fileless Import (#6391)

* Update apps/browser/src/tools/background/service_factories/import-api-service.factory.ts

Co-authored-by: ✨ Audrey ✨ <ajensen@bitwarden.com>

* Created non-exported ServiceCache-type for ImportApiServiceFactory

---------

Co-authored-by: Daniel James Smith <djsmith85@users.noreply.github.com>
Co-authored-by: Cesar Gonzalez <cesar.a.gonzalezcs@gmail.com>
Co-authored-by: ✨ Audrey ✨ <ajensen@bitwarden.com>

libs/angular/src/services/jslib-services.module.ts

@@ -150,6 +150,12 @@ import {
   VaultExportService,
   VaultExportServiceAbstraction,
 } from "@bitwarden/exporter/vault-export";
+import {
+  ImportApiService,
+  ImportApiServiceAbstraction,
+  ImportService,
+  ImportServiceAbstraction,
+} from "@bitwarden/importer";
 
 import { AuthGuard } from "../auth/guards/auth.guard";
 import { UnauthGuard } from "../auth/guards/unauth.guard";
@@ -485,6 +491,23 @@ import { AbstractThemingService } from "./theming/theming.service.abstraction";
         STATE_SERVICE_USE_CACHE,
       ],
     },
+    {
+      provide: ImportApiServiceAbstraction,
+      useClass: ImportApiService,
+      deps: [ApiServiceAbstraction],
+    },
+    {
+      provide: ImportServiceAbstraction,
+      useClass: ImportService,
+      deps: [
+        CipherServiceAbstraction,
+        FolderServiceAbstraction,
+        ImportApiServiceAbstraction,
+        I18nServiceAbstraction,
+        CollectionServiceAbstraction,
+        CryptoServiceAbstraction,
+      ],
+    },
     {
       provide: VaultExportServiceAbstraction,
       useClass: VaultExportService,

libs/common/src/enums/feature-flag.enum.ts

@@ -3,6 +3,7 @@ export enum FeatureFlag {
   DisplayLowKdfIterationWarningFlag = "display-kdf-iteration-warning",
   TrustedDeviceEncryption = "trusted-device-encryption",
   AutofillV2 = "autofill-v2",
+  BrowserFilelessImport = "browser-fileless-import",
 }
 
 // Replace this with a type safe lookup of the feature flag values in PM-2282