Add '1' keyboard shortcut to navigate home from anywhere

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

kjvstudy_org/templates/base.html

@@ -1649,6 +1649,10 @@
         // Single key shortcuts for navigation (only work without modifiers)
         if (!e.metaKey && !e.ctrlKey && !e.altKey) {
           switch(e.key) {
+            case '1':
+              e.preventDefault();
+              window.location.href = '/';
+              break;
             case '`':
               e.preventDefault();
               var toggle = document.getElementById('sidebar-toggle');