style: Consistent backdrop and create server in server-rail

wider server rail with larger icons ans slightly animated.

toju-app/src/app/features/shell/title-bar/title-bar.component.ts

@@ -41,7 +41,7 @@ import { ServerDirectoryFacade } from '../../../domains/server-directory';
 import { PlatformService } from '../../../core/platform';
 import { clearStoredCurrentUserId } from '../../../core/storage/current-user-storage';
 import { SettingsModalService } from '../../../core/services/settings-modal.service';
-import { LeaveServerDialogComponent } from '../../../shared';
+import { LeaveServerDialogComponent, ModalBackdropComponent } from '../../../shared';
 import { Room, type PluginRequirementSummary } from '../../../shared-kernel';
 import { VoiceWorkspaceService } from '../../../domains/voice-session';
 import { ThemeNodeDirective } from '../../../domains/theme';
@@ -59,7 +59,8 @@ import { getPluginInstallScope } from '../../../domains/plugins/domain/logic/plu
     CommonModule,
     NgIcon,
     LeaveServerDialogComponent,
-    ThemeNodeDirective
+    ThemeNodeDirective,
+    ModalBackdropComponent
   ],
   viewProviders: [
     provideIcons({ lucideMinus,