Refine the Pardon the Smash overlay

Includes various fixes and enhancements to the Pardon the Smash overlay.

The overlay has a logo added to the bottom right and the main bar slides in and out.

The admin page has a notification when the topics are updated, allows you to lock the topics so you don't accidentally edit them, allows you to reset the timer to 0, and allows you to set the timer to restart when the topic is changed.

Additionally, added a guest page that guests to the stream can open to keep track of the current topic.