Revert "Fix: Use Netlify functions for production search to keep API key secu…" (#2425)

This reverts commit 5492acc.

Author: abhijna

src/theme/Navbar/Search/index.tsx

@@ -1150,12 +1150,11 @@ const getMeilisearchConfig = (): SearchConfig => {
   const isDevelopment = window.location.hostname === 'localhost' || window.location.hostname === '127.0.0.1';
 
   if (isProduction || isNetlifyPreview || isTestingBranch || isDevelopment) {
-    // Always use Netlify functions for production and previews to keep API key secure
-    const useNetlifyFunctions = isProduction || isNetlifyPreview || window.location.hostname.includes('netlify.app');
+    const isNetlify = window.location.hostname.includes('netlify.app') || isNetlifyPreview;
 
     return {
       enabled: true,
-      hostUrl: useNetlifyFunctions ? 
+      hostUrl: isNetlify ? 
         `${window.location.origin}/.netlify/functions/meilisearch` :
         "https://ms-3ade175771ef-34593.sfo.meilisearch.io",
       apiKey: "",