Update entity button with toggle styling to match M3 components

[jpelgrom]

Summary

Update the entity chips/buttons to use Material 3 styling. Unfortunately our backgrounds which show position prevent changing it to a ToggleButton, but we can change the styling to match what the M3 theme does.

Screenshots

button with position + color (dimmable color light)
button with color only (on/off color light)
button with position only (fan with speed)
button off
normal buttons without toggle (for reference)

Link to pull request in Documentation repository

n/a

Any other notes