DLC support

[Ben2303]

Very nice app !

I sadly know nothing about eml or rust to tinker it... Could it be possible to add DLC (or updates) support (basicaly multifiles download from one game) with something like this in the conf and multiples download buttons in the single game page ?

[[games]]
path = 'mygame.exe'
slug = 'mygame'
  [[games.dlc]]
  path = './mygame.dlc.zip'
  label = 'Awesome DLC'
  [[games.dlc]]
  path = './mygame.dlc-2022.zip'
  label = 'Awesome DLC 2022'

Thanks :)