[PM-8368] AnonLayout Footer Updates (#9397)

* add hostname to footer via env service

* add logic for showing/hiding environment

* add docs

* add web env-selector

* refactor to use one slot for env-selector

* add storybook docs

* add env hostname to stories

* remove sample route

libs/auth/src/angular/anon-layout/anon-layout.component.html

@@ -22,7 +22,13 @@
     <ng-content select="[slot=secondary]"></ng-content>
   </div>
   <footer class="tw-text-center">
-    <div>&copy; {{ year }} Bitwarden Inc.</div>
-    <div>{{ version }}</div>
+    <div *ngIf="showReadonlyHostname">{{ "accessing" | i18n }} {{ hostname }}</div>
+    <ng-container *ngIf="!showReadonlyHostname">
+      <ng-content select="[slot=environment-selector]"></ng-content>
+    </ng-container>
+    <ng-container *ngIf="showYearAndVersion">
+      <div>&copy; {{ year }} Bitwarden Inc.</div>
+      <div>{{ version }}</div>
+    </ng-container>
   </footer>
 </main>