Removed redundant header search icon - moved search to content area

- **Header cleanup**: Removed search icon from top-right since search is now in content
- **Content search**: Search bar appears below breadcrumbs on book pages
- **Cleaner header**: Focus on auth, dark mode, and essential navigation
- **Consistent UX**: All search triggers same modal regardless of entry point

Search functionality moved entirely to page content for better user flow!

frontend/src/App.tsx

@@ -427,16 +427,8 @@ function App() {
 
 
 
-            {/* Search, User Authentication & Dark Mode */}
+            {/* User Authentication & Dark Mode */}
             <div className="flex items-center space-x-2">
-              {/* Search Button */}
-              <button
-                onClick={() => setShowSearch(true)}
-                className="p-2 rounded-lg hover:bg-gray-100 dark:hover:bg-gray-700 transition-colors"
-                title="Search Bible"
-              >
-                <Search className="h-4 w-4 sm:h-5 sm:w-5 text-gray-600 dark:text-gray-400" />
-              </button>
               {/* Authentication Button */}
               {authAvailable && (
                 <div>