PLT-3005 Added confirmation screen to integrations (#3747)

webapp/utils/async_client.jsx

@@ -1257,7 +1257,7 @@ export function addIncomingHook(hook, success, error) {
             });
 
             if (success) {
-                success();
+                success(data);
             }
         },
         (err) => {
@@ -1280,7 +1280,7 @@ export function addOutgoingHook(hook, success, error) {
             });
 
             if (success) {
-                success();
+                success(data);
             }
         },
         (err) => {
@@ -1374,7 +1374,7 @@ export function addCommand(command, success, error) {
             });
 
             if (success) {
-                success();
+                success(data);
             }
         },
         (err) => {