Make sidebar narrower and more compact

Reduce sidebar width from 280px to 220px:
- Decrease padding from 1.5rem to 1.25rem
- Reduce font-size from 0.85rem to 0.8rem
- Tighten line-height from 1.6 to 1.5
- Adjust article margin-left from 340px to 280px

Creates a more elegant, space-efficient navigation sidebar.

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

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

kjvstudy_org/templates/base.html

@@ -117,15 +117,15 @@
             position: fixed;
             top: 2rem;
             left: 2rem;
-            width: 280px;
+            width: 220px;
             max-height: calc(100vh - 4rem);
             overflow-y: auto;
             background: linear-gradient(to bottom, #fafafa 0%, #f8f8f8 100%);
             border: 1px solid #ddd;
             border-radius: 2px;
-            padding: 1.5rem;
-            font-size: 0.85rem;
-            line-height: 1.6;
+            padding: 1.25rem;
+            font-size: 0.8rem;
+            line-height: 1.5;
             box-shadow: 0 2px 8px rgba(0,0,0,0.08);
             z-index: 100;
         }
@@ -228,7 +228,7 @@
         /* Adjust article position when sidebar is present */
         @media (min-width: 1201px) {
             article {
-                margin-left: 340px;
+                margin-left: 280px;
             }
         }
     </style>