feat: signal server tag

toju-app/src/app/app.html

@@ -24,7 +24,7 @@
       [ngStyle]="isMobile() ? null : appWorkspaceShellStyles()"
     >
       @if (!isMobile()) {
-        <app-title-bar class="block shrink-0" />
+      <app-title-bar class="block shrink-0" />
       }
 
       <div class="relative min-h-0 flex-1 overflow-hidden">
@@ -94,16 +94,14 @@
   </div>
 
   @if (isMobile() && directCalls.mobileOverlaySession(); as call) {
-    <div class="absolute inset-0 z-[70]">
-      <app-private-call
-        class="block h-full w-full"
-        [callIdInput]="call.callId"
-        [overlayMode]="true"
-      />
-    </div>
-  }
-
-  @if (isThemeStudioFullscreen()) {
+  <div class="absolute inset-0 z-[70]">
+    <app-private-call
+      class="block h-full w-full"
+      [callIdInput]="call.callId"
+      [overlayMode]="true"
+    />
+  </div>
+  } @if (isThemeStudioFullscreen()) {
   <div
     #themeStudioControlsRef
     class="pointer-events-none absolute z-[80]"