CLEANUP: Remove duplicate character image toggle functionality

- Removed redundant character-toggle-btn since theme system now handles show/hide
- Deleted toggleCharacterImages() function and related JavaScript
- Theme dropdown 'None' option now serves the same purpose as the old hide button
- Eliminates duplicate UI controls and conflicting functionality
- Streamlined character image management through unified theme system

index.html

@@ -5954,40 +5954,8 @@
         window.removeVideoDirectory = removeVideoDirectory;
         window.closeVideoPreview = closeVideoPreview;
 
-        // Character images toggle functionality
-        let charactersVisible = true;
 
-        function toggleCharacterImages() {
-            charactersVisible = !charactersVisible;
-            const characterElements = document.querySelectorAll('.character-side');
-            const toggleBtn = document.getElementById('character-toggle-btn');
-            
-            characterElements.forEach(element => {
-                element.style.display = charactersVisible ? 'block' : 'none';
-            });
-            
-            toggleBtn.textContent = charactersVisible ? '👁️ Hide Images' : '👁️ Show Images';
-            
-            // Save preference to localStorage
-            localStorage.setItem('charactersVisible', charactersVisible);
-        }
-
-        // Load saved preference on page load
-        document.addEventListener('DOMContentLoaded', function() {
-            const saved = localStorage.getItem('charactersVisible');
-            if (saved !== null) {
-                charactersVisible = saved === 'true';
-                if (!charactersVisible) {
-                    toggleCharacterImages();
-                }
-            }
-        });
-
-        window.toggleCharacterImages = toggleCharacterImages;
     </script>
 
-    <!-- Character Images Toggle Button -->
-    <button id="character-toggle-btn" class="character-toggle-btn" onclick="toggleCharacterImages()">
-        👁️ Hide Images
-    </button>
+
 </html>