feat: add openai-compatible api models (#2683)

Signed-off-by: Shiranui <supersonic@livemail.tw>
Signed-off-by: Jared Van Bortel <jared@nomic.ai>
Co-authored-by: Jared Van Bortel <jared@nomic.ai>

gpt4all-chat/network.cpp

@@ -99,6 +99,15 @@ Network *Network::globalInstance()
     return networkInstance();
 }
 
+bool Network::isHttpUrlValid(QUrl url) {
+    if (!url.isValid())
+        return false;
+    QString scheme(url.scheme());
+    if (scheme != "http" && scheme != "https")
+        return false;
+    return true;
+}
+
 Network::Network()
     : QObject{nullptr}
 {