feat(SSO): (Auth/[PM-22110] Remove Alternate Login Options when SSO Required (#16340)

If a user is part of an org that has the `RequireSso` policy, when that user successfully logs in we add their email to a local `ssoRequiredCache` on their device. The next time this user goes to the `/login` screen on this device, we will use that cache to determine that for this email we should only show the "Use single sign-on" button and disable the alternate login buttons.

These changes are behind the flag: `PM22110_DisableAlternateLoginMethods`

apps/browser/src/background/main.background.ts

@@ -900,7 +900,11 @@ export default class MainBackground {
       this.restrictedItemTypesService,
     );
 
-    this.ssoLoginService = new SsoLoginService(this.stateProvider, this.logService);
+    this.ssoLoginService = new SsoLoginService(
+      this.stateProvider,
+      this.logService,
+      this.policyService,
+    );
 
     this.userVerificationApiService = new UserVerificationApiService(this.apiService);