Bugfixes
- Subscriptions: Fix checking breaking due to workers crashing (manifested as autochecking not happening and no response to using the check buttons).
- Subscriptions: Fix incorrect new video count (30) when the channel has deleted videos
Other
- Specify the default font for consistency between operating systems (on non-Windows operating systems such as Debian, the fonts are larger than the Windows defaults, which messes up the interface in some places). Font gurus are encouraged to make suggestions on the default choices. The default has been changed to Liberation Serif for now.