[UI] - Feat add request provider form on UI (#18704)

* add request provider form

* fix link to github

* add button

* fix link

ui/litellm-dashboard/src/app/(dashboard)/models-and-endpoints/ModelsAndEndpointsView.tsx

@@ -18,6 +18,7 @@ import { useQueryClient } from "@tanstack/react-query";
 import { Col, Grid, Icon, Tab, TabGroup, TabList, TabPanel, TabPanels, Text } from "@tremor/react";
 import type { UploadProps } from "antd";
 import { Form, Typography } from "antd";
+import { PlusCircleOutlined } from "@ant-design/icons";
 import React, { useEffect, useMemo, useState } from "react";
 import AddModelTab from "../../../components/add_model/add_model_tab";
 import HealthCheckComponent from "../../../components/model_dashboard/HealthCheckComponent";
@@ -274,6 +275,30 @@ const ModelsAndEndpointsView: React.FC<ModelDashboardProps> = ({ premiumUser, te
               )}
             </div>
           </div>
+
+          {/* Missing Provider Banner */}
+          <div className="mb-4 px-4 py-3 bg-blue-50 rounded-lg border border-blue-100 flex items-center gap-4">
+            <div className="flex-shrink-0 w-10 h-10 bg-white rounded-full flex items-center justify-center border border-blue-200">
+              <PlusCircleOutlined style={{ fontSize: '18px', color: '#6366f1' }} />
+            </div>
+            <div className="flex-1 min-w-0">
+              <h4 className="text-gray-900 font-semibold text-sm m-0">Missing a provider?</h4>
+              <p className="text-gray-500 text-xs m-0 mt-0.5">
+                The LiteLLM engineering team is constantly adding support for new LLM models, providers, endpoints. If you don't see the one you need, let us know and we'll prioritize it.
+              </p>
+            </div>
+            <a
+              href="https://models.litellm.ai/?request=true"
+              target="_blank"
+              rel="noopener noreferrer"
+              className="flex-shrink-0 inline-flex items-center gap-2 px-4 py-2 bg-[#6366f1] hover:bg-[#5558e3] text-white text-sm font-medium rounded-lg transition-colors"
+            >
+              Request Provider
+              <svg xmlns="http://www.w3.org/2000/svg" className="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
+                <path strokeLinecap="round" strokeLinejoin="round" d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4M14 4h6m0 0v6m0-6L10 14" />
+              </svg>
+            </a>
+          </div>
           {selectedModelId && !isLoading ? (
             <ModelInfoView
               modelId={selectedModelId}