[FEATURE REQUEST] Make battery optional

[Phil1988]

This is not related to a bug, but I would like to have the option to not show the battery, as I dont have one :)

currently its looking something like this:

But I would rather have something like this:

For the Fossil Fuel you included it to "show" it or not:

For the battery there is no such a thing, but it would be great to have it as well:

[Phil1988]

I want to add:

Its actually already possible, but there is no UI "switch" which would be handy.

If you modify it in yaml editor like this:

type: custom:energy-flow-card-plus
entities:
  battery:
    show: false
  grid:

The battery icon dissapears as its wanted: