Hiding controls when disabled is awkward and buggy

I think the extension should not hide its controls while it's disabled. This makes it really awkward to use:

Enabling and showing the mimic scale control needs at least two clicks.
When enabled by default, the controls are missing until the disabled and enabled again.

At the very least, the controls should not be hidden; that's what the accordion is for.

Ideally, I would like to see it work like the Hires. fix and the Refiner accordions, where opening and closing the accordion automatically enables and disables the extension, except if the user has clicked the checkbox before.

mcmonkeyprojects / sd-dynamic-thresholding

Hiding controls when disabled is awkward and buggy #98