chore: remove scraper, add docs, add marketing-videos gitignore

- Remove Scripts/ directory (scraper no longer needed)
- Add themed background documentation to CLAUDE.md
- Add .gitignore for marketing-videos to prevent node_modules tracking

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

marketing-videos/remotion.config.ts

@@ -0,0 +1,4 @@
+import { Config } from "@remotion/cli/config";
+
+Config.setVideoImageFormat("jpeg");
+Config.setOverwriteOutput(true);