Better brightness handling

[jlpouffier]

Almost every animation is now based on the user defined brightness.

Here is the list.

Animation running at the user brightness (Minimum cap of 20% to make sure the animation are visible)

• All the active voice assistant animations
• The muted, silent and idle animaiton
• The Jack interactions
• The dial interaction
• The tick of the timer

Animation running at the user brightness + 10% (Same cap as above)

• The error phase of the voice assistant
• The center button interaction
• The ring of the timer

Note: All the initialization animation are running at a fixed 66% brightness

[github-actions[bot]]

Firmware built successfully! :tada:

Download and extract the firmware to install with https://web.esphome.io

Make sure to choose home-assistant-voice-esp32s3.factory.bin.