[PM-22179] Redirect user to /setup-extension (#15375)

* add end user feature flag

* add initial setup extension component and route

* redirect users from registration completion to the setup extension page

* add `hideIcon` to anon layout for web
- matches implementation on the browser.

* integrate with anon layout for extension wrapper

* add initial loading state

* conditionally redirect the user upon initialization

* redirect the user to the vault if the extension is installed

* add initial copy for setup-extension page

* add confirmation dialog for skipping the extension installation

* add success state for setup extension page

* only show loggedin toast when end user activation is not enabled.

* add image alt

* lower threshold for polling extension

* close the dialog when linking to the vault

* update party colors

* use the platform specific registration service to to only forward the web registrations to `/setup-extension`

* call `super` rather than `/vault` directly, it could change in the future

libs/auth/src/angular/registration/registration-finish/default-registration-finish.service.ts

@@ -25,6 +25,10 @@ export class DefaultRegistrationFinishService implements RegistrationFinishServi
     return null;
   }
 
+  determineLoginSuccessRoute(): Promise<string> {
+    return Promise.resolve("/vault");
+  }
+
   async finishRegistration(
     email: string,
     passwordInputResult: PasswordInputResult,

libs/auth/src/angular/registration/registration-finish/registration-finish.component.ts

@@ -10,7 +10,9 @@ import { MasterPasswordPolicyOptions } from "@bitwarden/common/admin-console/mod
 import { AccountApiService } from "@bitwarden/common/auth/abstractions/account-api.service";
 import { RegisterVerificationEmailClickedRequest } from "@bitwarden/common/auth/models/request/registration/register-verification-email-clicked.request";
 import { HttpStatusCode } from "@bitwarden/common/enums";
+import { FeatureFlag } from "@bitwarden/common/enums/feature-flag.enum";
 import { ErrorResponse } from "@bitwarden/common/models/response/error.response";
+import { ConfigService } from "@bitwarden/common/platform/abstractions/config/config.service";
 import { I18nService } from "@bitwarden/common/platform/abstractions/i18n.service";
 import { LogService } from "@bitwarden/common/platform/abstractions/log.service";
 import { ValidationService } from "@bitwarden/common/platform/abstractions/validation.service";
@@ -77,6 +79,7 @@ export class RegistrationFinishComponent implements OnInit, OnDestroy {
     private logService: LogService,
     private anonLayoutWrapperDataService: AnonLayoutWrapperDataService,
     private loginSuccessHandlerService: LoginSuccessHandlerService,
+    private configService: ConfigService,
   ) {}
 
   async ngOnInit() {
@@ -186,15 +189,23 @@ export class RegistrationFinishComponent implements OnInit, OnDestroy {
         return;
       }
 
-      this.toastService.showToast({
-        variant: "success",
-        title: null,
-        message: this.i18nService.t("youHaveBeenLoggedIn"),
-      });
+      const endUserActivationFlagEnabled = await this.configService.getFeatureFlag(
+        FeatureFlag.PM19315EndUserActivationMvp,
+      );
+
+      if (!endUserActivationFlagEnabled) {
+        // Only show the toast when the end user activation feature flag is _not_ enabled
+        this.toastService.showToast({
+          variant: "success",
+          title: null,
+          message: this.i18nService.t("youHaveBeenLoggedIn"),
+        });
+      }
 
       await this.loginSuccessHandlerService.run(authenticationResult.userId);
 
-      await this.router.navigate(["/vault"]);
+      const successRoute = await this.registrationFinishService.determineLoginSuccessRoute();
+      await this.router.navigate([successRoute]);
     } catch (e) {
       // If login errors, redirect to login page per product. Don't show error
       this.logService.error("Error logging in after registration: ", e.message);

libs/auth/src/angular/registration/registration-finish/registration-finish.service.ts

@@ -16,6 +16,11 @@ export abstract class RegistrationFinishService {
    */
   abstract getMasterPasswordPolicyOptsFromOrgInvite(): Promise<MasterPasswordPolicyOptions | null>;
 
+  /**
+   * Returns the route the user is redirected to after a successful login.
+   */
+  abstract determineLoginSuccessRoute(): Promise<string>;
+
   /**
    * Finishes the registration process by creating a new user account.
    *