Describe the bug
When selecting and deselecting a video, downloading or deleting it doesn't take place until the menu is closed and reopened or the screensaver auto starts. Both Automatically download when checked and Automatically remove unchecked videos options are enabled. Also all videos are set download when checked.

To Reproduce
Steps to reproduce the behavior:

1. Enable Automatically download when checked and Automatically remove unchecked videos.
2. Set all videos to download when checked.
3. Deselect a video and observe the cache folder, it has not been deleted.
4. Close and reopen settings menu, video is now deleted.

This also applies when downlaoding a new video. Updating the cache size after deselecting a video also indicates that the video has not been deleted.

Expected behavior
Shouldn't the changes take effect instantly?

Aerial Version
Beta 0.5.3