Liverty v4c, new hook h3

The v4c ad with only the opening line changed. Everything from 'Hey, stop using these creams' on is v4c.

New opening (0-4 s): 'Imagine calm, clear skin for the first time in years.' Banner: 'Finally calm / your eczema / FOR GOOD'. 5:35, 720p phone copy.

Carries the same fixes as h1 (no TikTok Shop caption flash at about 44.5 s).