Resize widget after content change

Change-Id: Ieb9a95210e125b938ab4c35630501d6369ab8eb7
diff --git a/plugin/templates/export.js b/plugin/templates/export.js
index fbada53..8d234e8 100644
--- a/plugin/templates/export.js
+++ b/plugin/templates/export.js
@@ -21,6 +21,8 @@
         };
         document.getElementById("export-query").innerText = e;
       };
+
+      P.resize();
     }
   );
 };