As the add-ons column takes the most processing time out of any (as it needs to search registration for updates/dlc, patch control NCAs, search for mods, etc.), an option was added to disable it. This does not affect the application of add-ons. In large game collections, this decreases game list refresh time by as much as 70%.
Given these are shown to the user, they should be translatable.
While we're at it, also set up the dialog to automatically retranslate
the dialog along with the combo boxes if it receives a LanguageChange
event.
Keeps the individual initialization of the combo boxes logically separate.
We also shouldn't be dumping this sort of thing in the constructor
directly.
