Change submit rating method

[insomniacc]

When the rating is submitted, because it's happening on the 'onchange' for the rating value itself, if there's already a rating, when you click it, it removes the value and thus sets a rating of zero.

Instead, I'll have to change the submit rating to its own independent button in the modal.

[insomniacc]

Complete. Added save button to model, moved away from rating event handler.