feat: Added service dropdown picker widget for several DA inputs (#878)

Author: Khuzaima05

ibm_catalog.json

@@ -569,7 +569,18 @@
             },
             {
               "key": "existing_subnet_ids",
-              "hidden": true
+              "display_name": "existing_subnets",
+              "hidden": true,
+              "custom_config": {
+                "type": "platform_resource",
+                "grouping": "deployment",
+                "original_grouping": "deployment",
+                "config_constraints": {
+                  "resourceType": "subnet",
+                  "selection": "multi_select",
+                  "valueType": "id"
+                }
+              }
             },
             {
               "key": "use_private_endpoint",
@@ -765,13 +776,24 @@
             },
             {
               "key": "existing_secrets_manager_instance_crn",
+              "display_name": "existing_secrets_manager_instance",
               "value_constraints": [
                 {
                   "type": "regex",
                   "description": "The value provided for 'existing_secrets_manager_instance_crn' is not valid.",
                   "value": "^__NULL__$|^crn:(.*:){3}secrets-manager:(.*:){2}[0-9a-fA-F]{8}(?:-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}::$"
                 }
               ],
+              "custom_config": {
+                "type": "platform_resource",
+                "grouping": "deployment",
+                "original_grouping": "deployment",
+                "config_constraints": {
+                  "resourceType": "secrets-manager",
+                  "selection": "single_select",
+                  "valueType": "crn"
+                }
+              },
               "hidden": true
             },
             {
@@ -810,25 +832,47 @@
             },
             {
               "key": "existing_vpc_crn",
+              "display_name": "existing_vpc",
               "hidden": true,
               "value_constraints": [
                 {
                   "type": "regex",
                   "description": "The value provided for 'existing_vpc_crn' is not valid.",
                   "value": "^crn:(.*:){3}is:(.*:){2}:vpc:[0-9a-z]{4}-[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"
                 }
-              ]
+              ],
+              "custom_config": {
+                "type": "platform_resource",
+                "grouping": "deployment",
+                "original_grouping": "deployment",
+                "config_constraints": {
+                  "resourceType": "vpc",
+                  "selection": "single_select",
+                  "valueType": "crn"
+                }
+              }
             },
             {
               "key": "existing_cos_instance_crn",
+              "display_name": "existing_cos_instance",
               "hidden": true,
               "value_constraints": [
                 {
                   "type": "regex",
-                  "description": "The value provided for 'existing_cos_instance_crn' is not valid.",
+                  "description": "The value provided for 'existing_cos_instance' is not valid.",
                   "value": "^crn:(.*:){3}cloud-object-storage:(.*:){2}[0-9a-fA-F]{8}(?:-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}::$"
                 }
-              ]
+              ],
+              "custom_config": {
+                "type": "platform_resource",
+                "grouping": "deployment",
+                "original_grouping": "deployment",
+                "config_constraints": {
+                  "resourceType": "cloud-object-storage",
+                  "selection": "single_select",
+                  "valueType": "crn"
+                }
+              }
             },
             {
               "key": "skip_ocp_secrets_manager_iam_auth_policy",