Closed dashboard widget causing JavaScript error (possible fix enclosed)

If I close/collapse the dashboard widget accordion then the wpMandrill script call to jQuery Flot throws an error which causes other dashboard widgets to break and not render.

Steps to reproduce:

1. Login to admin dashboard with wpMandrill installed and active
2. Open JavaScript console
3. Close/collapse wpMandrill’s admin dashboard accordion
4. Refresh page
5. Console error expected: Uncaught Invalid dimensions for plot, width = 0, height = 400 jquery.flot.js:711

In wpmandrill.php @ line 1212 adding an inline style of width:100% to #filtered_recent appears to alleviate the issue.

Please update the plugin accordingly to mitigate the chances this plugin breaks other plugins.

https://ww.wp.xz.cn/plugins/wpmandrill/