Fix mobile post title icons being cut off

Remove negative margin on mobile that pushed icons outside viewport.
Reduce icon size from 48px to 32px for better mobile proportions.

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

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

templates/post.html

@@ -144,6 +144,17 @@
             margin-bottom: 2rem;
         }
         
+        .post-title-container {
+            width: 100%;
+            gap: 0.75rem;
+        }
+        
+        .post-title-icon {
+            margin-left: 0;
+            width: 32px;
+            height: 32px;
+        }
+        
         article hr {
             width: 100%;
             max-width: 100%;