Update default accessibility preferences

- Theme: dark
- Dyslexia font: enabled
- Line spacing: loose
- Reading width: wide
- Enhanced focus: off (default)
- Font size: 100% (level 3)
- Reduced motion: system

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

themes/swissfini/assets/js/accessibility.js

@@ -25,11 +25,11 @@
 
   const DEFAULTS = {
     fontSize: 3,              // 1-5 scale, 3 = 100%
-    theme: 'system',          // 'light', 'dark', 'high-contrast', 'system'
-    dyslexiaFont: false,
-    lineSpacing: 'normal',    // 'compact', 'normal', 'relaxed', 'loose'
+    theme: 'dark',            // 'light', 'dark', 'high-contrast', 'system'
+    dyslexiaFont: true,
+    lineSpacing: 'loose',     // 'compact', 'normal', 'relaxed', 'loose'
     reducedMotion: 'system',  // 'true', 'false', 'system'
-    readingWidth: 'medium',   // 'narrow', 'medium', 'wide'
+    readingWidth: 'wide',     // 'narrow', 'medium', 'wide'
     enhancedFocus: false
   };