Fixed and updated view while importing shows

* Fixed the progress icons being the wrong size (I forgot to update them when I updated the icons on the main series overview)
* Made the posters smaller, I don't think they need to be full size
* Added some padding around area so it fits better
* Made the upload file area bigger so the file-name shouldn't get cut off anymore

![image](https://cloud.githubusercontent.com/assets/6258213/4022368/08049794-2b2f-11e4-9d2e-f567c3cfff6a.png)