Allow multiple signal servers (might need rollback)

src/app/features/settings/settings.component.ts

@@ -3,7 +3,8 @@ import {
   Component,
   inject,
   signal,
-  OnInit
+  OnInit,
+  computed
 } from '@angular/core';
 import { CommonModule } from '@angular/common';
 import { FormsModule } from '@angular/forms';
@@ -61,6 +62,10 @@ export class SettingsComponent implements OnInit {
   audioService = inject(NotificationAudioService);
 
   servers = this.serverDirectory.servers;
+  activeServers = this.serverDirectory.activeServers;
+  hasMissingDefaultServers = this.serverDirectory.hasMissingDefaultServers;
+  hasMultipleServers = computed(() => this.servers().length > 1);
+  hasMultipleActiveServers = computed(() => this.activeServers().length > 1);
   isTesting = signal(false);
   addError = signal<string | null>(null);
 
@@ -122,6 +127,14 @@ export class SettingsComponent implements OnInit {
     this.serverDirectory.setActiveServer(id);
   }
 
+  deactivateServer(id: string): void {
+    this.serverDirectory.deactivateServer(id);
+  }
+
+  restoreDefaultServers(): void {
+    this.serverDirectory.restoreDefaultServers();
+  }
+
   /** Test connectivity to all configured servers. */
   async testAllServers(): Promise<void> {
     this.isTesting.set(true);