Two little additions to the website

Playing around with the site a little today.

Added two new things:

A theme switcher which honours your operating system's appearance preferences (i.e. light or dark mode
A widget in the footer which tells you what I'm currently listening to (which could end up being embarassing).

Also fixed a few behind the scenes bugs with the admin system.

Feels nice to do a bit of programming. Site feels a bit more like a personal playground now.

Recent notes