Return early from SimpleFIN /transactions if the account needs attention (#413)

src/app-simplefin/app-simplefin.js

@@ -123,6 +123,7 @@ app.post(
               'The account needs your attention at <a href="https://bridge.simplefin.org/auth/login">SimpleFIN</a>.',
           },
         });
+        return;
       }
 
       const response = {};

upcoming-release-notes/413.md

@@ -0,0 +1,6 @@
+---
+category: Bugfix
+authors: [jpetso]
+---
+
+Return early from SimpleFIN /transactions if the account needs attention