Fix remaining issues: page title and browser navigation

- Page title now dynamically updates: 'NKJV Bible', 'ESV Bible', or 'The Bible'
- Browser back button detection improved - URL parameters are read on navigation changes
- Clearing version selection when returning to home without version parameter
- Complete NKJV logo update committed to repository

UI now properly reflects selected version in both title and navigation behaviors

frontend/src/App.tsx

@@ -34,14 +34,18 @@ function App() {
   // Debug logging
   console.log('App component rendered');
 
-  // Read version from URL on mount
+  // Read version from URL on mount and when location changes
   useEffect(() => {
     const urlParams = new URLSearchParams(location.search);
     const versionParam = urlParams.get('version');
     if (versionParam && (versionParam === 'esv' || versionParam === 'nkjv')) {
       setSelectedVersion(versionParam);
+    } else if (!versionParam && selectedVersion && location.pathname === '/') {
+      // If we're back at home without version param and had a version selected,
+      // this likely means user hit back and should see version selector
+      setSelectedVersion('');
     }
-  }, []);
+  }, [location.search, selectedVersion]);
 
   useEffect(() => {
     console.log('App useEffect triggered');
@@ -61,6 +65,10 @@ function App() {
       url.searchParams.delete('version');
     }
     window.history.replaceState({}, '', url.toString());
+
+    // Update page title to reflect selected version
+    const versionTitle = selectedVersion ? selectedVersion.toUpperCase() : '';
+    document.title = versionTitle ? `${versionTitle} Bible` : 'The Bible';
   }, [selectedVersion]);
 
   // Load user preferences when user changes