Added Bricks theme stack

Property	Value
description	Installed the Bricks parent theme and activated `MAC Bricks` as the baseline child theme.

• Installed the Bricks parent theme at 2.3.2.
• Activated MAC Bricks at 1.0.0 as the shipped child theme.
• Set template = bricks and stylesheet = mac-bricks in the final baseline state.
• Completed the matching Bricks license activation, with the secret kept redacted.