This replaced the manual use of QtKeychain which could be error-prone,
and nasty. This WILL reset saved passwords unfortunately, because the
name was set wrong (it was previously LauncherWindow instead of Astra).
It turns out that Dalamud has it's own injector (since when??) and Astra
will now use that instead of my own solution. Thanks to marzent of the
XIV-on-Mac team, as that's how I learned this existed :-p
Not only does this remove quite a bit of code cruft, this should make
launching the game if you're using Dalamud more stable too :-)
Previously there was two separate auto-login functions, one in the cli
interface and one for the desktop interface. If I didn't stop myself,
there would probably be one in the tablet interface too!
Soon, you'll be able to store an OTP secret with Astra :-)
Also, the cancel button is broken ATM, so you have to manually turn the
feature off in the config.
