Improved HA config in next beta

[revk]

HA config is not something I am too good at, and the Faikin was the first with the auto confirm.

Suggestions for better icons, etc, always welcome. I just added a sensor for RAM usage (optional) for example, and needs a better icon.

However, I am also planning, in current beta, to move to a common HA config library I have in my ESP32-RevK package. I used that for the RAM fields, but I plan to move the existing settings and controls over as much as possible. It may mean some appear as duplicates if names change, etc. I'll see what I can do to avoid that.

It should make things better and more consistent and easier to maintain.