added embedding model selection

src/WebsearchSettings.jsx

@@ -38,7 +38,7 @@ return (
         className="input"
         value={searxUrl}
         onChange={e => setSearxUrl(e.target.value)}
-        placeholder="e.g., http://localhost:8888"
+        placeholder="e.g., http://127.0.0.1:8888"
       />
     </div>
 
@@ -59,4 +59,4 @@ return (
     </div>
   </div>
 );
-}
+}