Font refactor: replace generic display fonts across Videos + Writings

Renegade Storyteller:
- Ribeye Marrow → Amarante (Art Nouveau, cleaner mobile rendering)
- h1 floor reduced 4rem → 3rem
- h1::before letter-spacing tightened on mobile (was overflowing narrow screens)

Writings (11 files via script):
- Bebas Neue → Fredericka the Great (4 files)
- Anton → Rubik Glitch (2 files)
- Cinzel / Cinzel Decorative → Glass Antiqua (5 files)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Writings/OfPensandSwordsIntheBellyoftheDragon.html

@@ -6,7 +6,7 @@
 <title>Of Pens and Swords / In the Belly of the Dragon — Annotated</title>
 <link rel="preconnect" href="https://fonts.googleapis.com">
 <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-<link href="https://fonts.googleapis.com/css2?family=Special+Elite&family=Courier+Prime:ital,wght@0,400;0,700;1,400&family=EB+Garamond:ital,wght@0,400;0,500;1,400;1,500&family=Cinzel:wght@400;500;600&display=swap" rel="stylesheet">
+<link href="https://fonts.googleapis.com/css2?family=Special+Elite&family=Courier+Prime:ital,wght@0,400;0,700;1,400&family=EB+Garamond:ital,wght@0,400;0,500;1,400;1,500&family=Glass+Antiqua&display=swap" rel="stylesheet">
 <style>
   :root {
     --bg-deep:       #07070b;