feat(nginx): redirect gateway.autonomys.xyz/ to explorer.ai3.storage (#528)

Author: clostao

nginx/backend.mainnet.public.conf

@@ -126,7 +126,9 @@ server {
         rewrite /folder/(.*) /downloads/$1?ignoreEncoding=false break;
     }
 
-
+    location / {
+        return 301 https://explorer.ai3.storage$request_uri;
+    }
 
     listen 443 ssl http2; # managed by Certbot
     ssl_certificate /etc/letsencrypt/live/public.auto-drive.autonomys.xyz/fullchain.pem; # managed by Certbot
@@ -209,6 +211,12 @@ server {
 
         rewrite /folder/(.*) /downloads/$1  break;
     }
+
+    location / {
+        return 301 https://explorer.ai3.storage$request_uri;
+    }
+
+    listen 80;
 }
 
 server {