Increase visibility of artist pattern background on desktop ads

Update the artist pattern background component by increasing the opacity and size of the artist names to improve visibility on dark backgrounds, and update gallery image URLs.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 517dfa7b-26ac-463d-a6e1-a58c6df97188
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 12dbbb07-98ab-4bdb-a0c1-16261331f147
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/f209e72a-0939-48fa-84fc-57854de71967/517dfa7b-26ac-463d-a6e1-a58c6df97188/jdAEdU5
Replit-Helium-Checkpoint-Created: true

client/src/components/artist-pattern-bg.tsx

@@ -35,8 +35,8 @@ export default function ArtistPatternBg({ children, className = "", seed = 42 }:
         name: ARTISTS[Math.floor(rng() * ARTISTS.length)],
         x: rng() * 100,
         y: (i / count) * 100 + (rng() - 0.5) * 8,
-        size: 9 + rng() * 9,
-        opacity: 0.03 + rng() * 0.05,
+        size: 10 + rng() * 10,
+        opacity: 0.06 + rng() * 0.09,
         rotation: -12 + rng() * 24,
         italic: rng() > 0.6,
       });