fix(add_brightness_slider): Adds brightness slider for PBs in network based on PB implementation.

[caleyg]

This PR is based on the implementation in the PB interface, which adds the already familiar brightness slider to the FS UI, with tooltips!

using lodash there is a small delay so we don't spam the PBs with messages by moving the slider around.

yarn run v1.22.19
$ node server
listening on 3001
> Pixelblaze Discovery Server listening on 0.0.0.0: 1889
connected to 10.0.0.35
sending to 10225758 at 10.0.0.35 {"getConfig":true,"listPrograms":true,"sendUpdates":false}
connected to 10.0.0.34
sending to 16573876 at 10.0.0.34 {"getConfig":true,"listPrograms":true,"sendUpdates":false}
sending to 10225758 at 10.0.0.35 {"brightness":0.445}
sending to 16573876 at 10.0.0.34 {"brightness":0.445}
sending to 10225758 at 10.0.0.35 {"brightness":0.145}
sending to 16573876 at 10.0.0.34 {"brightness":0.145}
sending to 10225758 at 10.0.0.35 {"activeProgramId":"9YNBonyhXfyFjpYzJ"}
sending to 16573876 at 10.0.0.34 {"activeProgramId":"9YNBonyhXfyFjpYzJ"}
sending to 10225758 at 10.0.0.35 {"brightness":0.325}
sending to 16573876 at 10.0.0.34 {"brightness":0.325}
sending to 10225758 at 10.0.0.35 {"brightness":0.07}
sending to 16573876 at 10.0.0.34 {"brightness":0.07}
sending to 10225758 at 10.0.0.35 {"brightness":0.21}
sending to 16573876 at 10.0.0.34 {"brightness":0.21}
sending to 10225758 at 10.0.0.35 {"brightness":0.125}
sending to 16573876 at 10.0.0.34 {"brightness":0.125}
sending to 10225758 at 10.0.0.35 {"brightness":0.105}
sending to 16573876 at 10.0.0.34 {"brightness":0.105}
sending to 10225758 at 10.0.0.35 {"brightness":0.225}
sending to 16573876 at 10.0.0.34 {"brightness":0.225}

This PR resolves #46

Since we store brightness levels in localstoraged, based on whats in master currently. When #44 is finally merged in we will need to update this to store the brightness level in the db backend also.

[caleyg]

this will be resolved in this PR #44