fix: change hugging face default port (#94)

Tested on personal space
<img width="1363" alt="image"
src="https://github.com/landing-ai/vision-agent-ui/assets/132986242/a448aa6f-eddf-40f7-a03a-340d4402f888">

README.md

@@ -5,6 +5,7 @@ colorFrom: yellow
 colorTo: indigo
 sdk: docker
 pinned: false
+app_port: 3000
 ---
 
 <a href="https://chat.vercel.ai/">

components/chat/TopPrompt.tsx

@@ -43,9 +43,19 @@ export default async function TopPrompt({ chat, userId }: TopPrompt) {
         </div>
         <div className="flex-1 px-1 ml-2 overflow-hidden">
           <p className="leading-normal font-medium">
-            <Link href="/sign-in" className="underline">
-              Sign in
-            </Link>{' '}
+            {process.env.NEXT_PUBLIC_IS_HUGGING_FACE ? (
+              <Link
+                href="https://va.landing.ai"
+                target="_blank"
+                className="underline"
+              >
+                Visit Landing AI{"'"}s website
+              </Link>
+            ) : (
+              <Link href="/sign-in" className="underline">
+                Sign in
+              </Link>
+            )}{' '}
             to save and revisit your chat history!
           </p>
         </div>