1-click quality for Twitch

Adds buttons below the stream so it lets you change qualities with just one click.

The On/Off switch saves the last quality setting, so that when you open new streams, that quality will be selected from the get go if it's available. If it's off, it uses the last quality saved from when it was on or if you selected it through Twitch's own quality options.

I tend to hop back and forth a lot of streams running in the background, but leave all them running in 160p to save PC load. It was something I did for this exact purpose and thought someone else might think it's useful.

1.3:

Fix: Buttons are working again

Now, when a quality is saved beforehand and the stream doesn't have that quality enabled, it selects the nearest quality instead of defaulting to Auto.