style(header): remove logo subtitle and center instance title next to icon

frontend/src/features/auth/SetupAndAuthView.tsx

@@ -356,12 +356,9 @@ export const SetupAndAuthView: React.FC<SetupAndAuthViewProps> = ({
             <div className="w-7 h-7 bg-accent text-on-accent rounded-btn flex items-center justify-center">
               <Brain className="w-4 h-4" />
             </div>
-            <div>
-              <h1 className="text-sm font-bold text-main tracking-tight leading-none">
-                {authStatus.instanceName || 'MindSift'}
-              </h1>
-              <p className="text-[11px] text-muted mt-0.5">Der Kopf frei in drei Sekunden</p>
-            </div>
+            <h1 className="text-sm font-bold text-main tracking-tight leading-none">
+              {authStatus.instanceName || 'MindSift'}
+            </h1>
           </div>
           <Lock className="w-4 h-4 text-faint" />
         </div>