Fix ContentView.swift syntax errors

- Remove leftover page size code fragments
- Clean up VStack structure and closing braces
- Fix Swift compilation errors in ContentView.swift
- Ensure proper syntax for engine-based UI

Author: devz906

App/ContentView.swift

@@ -57,18 +57,6 @@ struct ContentView: View {
                 }
                 .padding()
                 .background(Color(.systemGray6))
-                .cornerRadius(10)
-                        Text("✅ Optimal 16KB page size detected")
-                            .font(.caption)
-                            .foregroundColor(.green)
-                    } else if pageSize == 4096 {
-                        Text("⚠️ 4KB page size - supported but less optimal")
-                            .font(.caption)
-                            .foregroundColor(.orange)
-                    }
-                }
-                .padding()
-                .background(Color(.systemGray6))
                 .cornerRadius(10)
 
                 // Control Buttons