remove spinner when unlock fails

src/views/Unlock.svelte

@@ -34,7 +34,6 @@
             }
         }
         catch (e) {
-            window.error = e;
             if (e.code === 'GetSession') {
                 let root = getRootCause(e);
                 errorMsg = `Error response from AWS (${root.code}): ${root.msg}`;
@@ -43,11 +42,12 @@
                 errorMsg = e.msg;
             }
             
+            // if the alert already existed, shake it
             if (alert) {
                 alert.shake();
             }
 
-            saving = true;
+            saving = false;
         }
     }