Makes comboboxes always correspond to the value of the setting they're
modifying.

Needs a considerable amount of management specific to some of
the comoboboxes due to the audio engine configuration.

general: Partial audio config implmentation

configure_audio: Implement ui generation

Needs a considerable amount of management specific to some of
the comoboboxes due to the audio engine configuration.

general: Partial audio config implmentation

settings: Make audio settings as enums

This one looks more relevant on Windows.

Makes checkbox creation an option as opposed to a label.

It's empty.

These don't need to be whole new types.

To specialized a setting to be worth adding to the shared_widget imo,
so add it roughly like before.

This leaves per-game config's General tab empty?

Me shooting myself in the foot 3 days in advance.

We were passing so many objects between the function and the caller that
it needed to be redesigned.

Only for updated configs at the moment

Will help with generating config UI later.