Update first run message on Web app with Chat models setup instructions

- Link to Django admin panel for user to create Chat Models on their
  Khoj server
- This should only get hit when user is not using Khoj cloud, as Khoj
  cloud would already have Chat models configured

src/khoj/interface/web/chat.html

@@ -327,7 +327,7 @@ To get started, just start typing below. You can also type / to see a list of co
                 .then(data => {
                     if (data.detail) {
                         // If the server returns a 500 error with detail, render a setup hint.
-                        renderMessage("Hi 👋🏾, to get started you have two options:<ol><li><b>Use OpenAI</b>: <ol><li>Get your <a class='inline-chat-link' href='https://platform.openai.com/account/api-keys'>OpenAI API key</a></li><li>Save it in the Khoj <a class='inline-chat-link' href='/config/processor/conversation/openai'>chat settings</a></li><li>Click Configure on the Khoj <a class='inline-chat-link' href='/config'>settings page</a></li></ol></li><li><b>Enable offline chat</b>: <ol><li>Go to the Khoj <a class='inline-chat-link' href='/config'>settings page</a> and enable offline chat</li></ol></li></ol>", "khoj");
+                        renderMessage("Hi 👋🏾, to start chatting add available chat models options via <a class='inline-chat-link' href='/server/admin'>the Django Admin panel</a> on the Server", "khoj");
 
                         // Disable chat input field and update placeholder text
                         document.getElementById("chat-input").setAttribute("disabled", "disabled");