Add support for automatically updating October

[marcus-crane]

This should make it less fiddly to get the latest fixes

See: #65

[marcus-crane]

Doing experimentation over at https://github.com/marcus-crane/wails-autoupdater since I need to create releases to test this stuff out

[marcus-crane]

I got a bit stuck on how I might implement Windows updating but I believe I can just unzip the installer and quietly run through it with stock settings (there aren't any installer options anyway)

[marcus-crane]

I got a bit stuck on how I might implement Windows updating but I believe I can just unzip the installer and quietly run through it with stock settings (there aren't any installer options anyway)

I've been keeping an eye out for how things are done on Windows and I've seen a couple implementations that just close the application and pop open the installer, leaving the user to run through it so realistically, that could be a reasonable way to go.

There might not be much value in having the user run through it unless there are actually some options to toggle (and there aren't)