Suggestion box freezes after someone enters a ticket

[guillermo-carrasco]

Whenever someone submits a new suggestion, the suggestion box page freezes: Users cannot scroll up or down, and the form is not cleaned up.

The bigger problem is that they actually can click "Submit Suggestions" again, and as they don't get any feedback when submitting it, they think that it has not been submitted, and therefore they click again, and again... so we end up with a lot of repeated suggestions in Trello.

The behaviour should be:

1. Once the user clicks in "Send Suggestiong" some feedback (pop-up, whatever) tells the user that everything is fine
2. The form is wiped out after the Suggestion is submitted