chore: update the DA overview text and feature section (#294)

Author: piyush117

ibm_catalog.json

@@ -23,7 +23,7 @@
         "solution"
       ],
       "short_description": "Creates and configures service to service authorisation.",
-      "long_description": "This deployable architecture is used to provision and configure [service to service authorisation](https://cloud.ibm.com/iam/authorizations).\n\n\n💡 This Terraform-based automation is part of a broader suite of IBM-maintained Infrastructure as Code (IaC) asset collection, each following the naming pattern \"Cloud automation for *servicename*\" and focusing on single IBM Cloud service.",
+      "long_description": "This deployable architecture is used to provision and configure [service to service authorisation](https://cloud.ibm.com/iam/authorizations). \n\nLeverage [Terraform IBM Modules](https://github.com/terraform-ibm-modules) to shape and scale your solutions. You can integrate Terraform IBM Modules (TIM) to extend functionality and design a solution tailored to your environment and operations needs. These modules offer reusable, customizable elements that follow IBM Cloud's recommended practices. You can access the [source code and documentation](https://github.com/terraform-ibm-modules/terraform-ibm-s2s-auth) and use it to extend your current architecture or create new solutions.\n\n\n💡 This Terraform-based automation is part of a broader suite of IBM-maintained Infrastructure as Code (IaC) asset collection, each following the naming pattern \"Cloud automation for *servicename*\" and focusing on single IBM Cloud service.",
       "offering_docs_url": "https://github.com/terraform-ibm-modules/terraform-ibm-s2s-auth/tree/main/solutions/fully-configurable/README.md",
       "offering_icon_url": "https://raw.githubusercontent.com/terraform-ibm-modules/terraform-ibm-s2s-auth/refs/heads/main/images/s2s_icon.svg",
       "provider_name": "IBM",
@@ -35,6 +35,10 @@
         {
           "title": "Creates Access Group Policies",
           "description": "For more details on an Access Group Polices, [see here](https://cloud.ibm.com/docs/account?topic=account-account_setup#how_access)."
+        },
+        {
+          "title": "Composable and Extensible Architecture",
+          "description": "This architecture illustrates how Terraform IBM Modules(TIM) can be integrated to deliver a complete solution on IBM Cloud. Each module is a reusable, and validated component for security, compliance, and operational IBM best practices. You can deploy this architecture as-is or configure it as code by leveraging the underlying modules to fit your specific requirements. Explore the [source code and documentation](https://github.com/terraform-ibm-modules/terraform-ibm-s2s-auth) to adapt, extend, or create entirely new solutions using these building blocks."
         }
       ],
       "support_details": "This product is in the community registry, as such support is handled through the originated repo. If you experience issues please open an issue in that repository [https://github.com/terraform-ibm-modules/terraform-ibm-s2s-auth/issues](https://github.com/terraform-ibm-modules/terraform-ibm-s2s-auth/issues). Please note this product is not supported via the IBM Cloud Support Center.",