feat(sso): [PM-8114] implement SSO component UI refresh

Consolidates existing SSO components into a single unified component in
libs/auth, matching the new design system. This implementation:

- Creates a new shared SsoComponent with extracted business logic
- Adds feature flag support for unauth-ui-refresh
- Updates page styling including new icons and typography
- Preserves web client claimed domain logic
- Maintains backwards compatibility with legacy views

PM-8114

---------

Co-authored-by: Jared Snider <116684653+JaredSnider-Bitwarden@users.noreply.github.com>
Co-authored-by: Jared Snider <jsnider@bitwarden.com>

libs/auth/src/angular/anon-layout/anon-layout-wrapper.component.ts

@@ -35,6 +35,10 @@ export interface AnonLayoutWrapperData {
    * Optional flag to set the max-width of the page. Defaults to 'md' if not provided.
    */
   maxWidth?: "md" | "3xl";
+  /**
+   * Optional flag to set the max-width of the title area. Defaults to null if not provided.
+   */
+  titleAreaMaxWidth?: "md";
 }
 
 @Component({
@@ -50,6 +54,7 @@ export class AnonLayoutWrapperComponent implements OnInit, OnDestroy {
   protected pageIcon: Icon;
   protected showReadonlyHostname: boolean;
   protected maxWidth: "md" | "3xl";
+  protected titleAreaMaxWidth: "md";
 
   constructor(
     private router: Router,
@@ -100,6 +105,7 @@ export class AnonLayoutWrapperComponent implements OnInit, OnDestroy {
 
     this.showReadonlyHostname = Boolean(firstChildRouteData["showReadonlyHostname"]);
     this.maxWidth = firstChildRouteData["maxWidth"];
+    this.titleAreaMaxWidth = firstChildRouteData["titleAreaMaxWidth"];
   }
 
   private listenForServiceDataChanges() {
@@ -157,6 +163,7 @@ export class AnonLayoutWrapperComponent implements OnInit, OnDestroy {
     this.pageIcon = null;
     this.showReadonlyHostname = null;
     this.maxWidth = null;
+    this.titleAreaMaxWidth = null;
   }
 
   ngOnDestroy() {