spread existingConfig.API (#7668)

Author: josefaidt

src/pages/[platform]/build-a-backend/add-aws-services/rest-api/set-up-http-api/index.mdx

@@ -227,6 +227,7 @@ const existingConfig = Amplify.getConfig();
 Amplify.configure({
   ...existingConfig,
   API: {
+    ...existingConfig.API,
     REST: outputs.custom.API,
   },
 });
@@ -243,6 +244,7 @@ const existingConfig = Amplify.getConfig();
 Amplify.configure({
   ...existingConfig,
   API: {
+    ...existingConfig.API,
     REST: outputs.custom.API,
   },
 });

src/pages/[platform]/build-a-backend/add-aws-services/rest-api/set-up-rest-api/index.mdx

@@ -214,6 +214,7 @@ const existingConfig = Amplify.getConfig();
 Amplify.configure({
   ...existingConfig,
   API: {
+    ...existingConfig.API,
     REST: outputs.custom.API,
   },
 });
@@ -230,6 +231,7 @@ const existingConfig = Amplify.getConfig();
 Amplify.configure({
   ...existingConfig,
   API: {
+    ...existingConfig.API,
     REST: outputs.custom.API,
   },
 });