feat: add back navigation to agent network screen and update route transition animation

lib/features/agents/presentation/screens/agent_network_screen.dart

@@ -151,14 +151,27 @@ class AgentNetworkScreen extends ConsumerWidget {
             width: 0.5),
         borderRadius: BorderRadius.circular(7),
       ),
-      child: const Text(
-        'Manage My Network',
-        style: TextStyle(
-          fontFamily: 'Fractul',
-          fontSize: 14,
-          fontWeight: FontWeight.w600,
-          color: AppColors.primaryDark,
-        ),
+      child: Row(
+        children: [
+          GestureDetector(
+            onTap: () => context.go('/home'),
+            child: const Icon(
+              Icons.arrow_back_ios_new_rounded,
+              size: 18,
+              color: AppColors.primaryDark,
+            ),
+          ),
+          const SizedBox(width: 12),
+          const Text(
+            'Manage My Network',
+            style: TextStyle(
+              fontFamily: 'Fractul',
+              fontSize: 14,
+              fontWeight: FontWeight.w600,
+              color: AppColors.primaryDark,
+            ),
+          ),
+        ],
       ),
     );
   }