feat: move map from nginx sigil to nginx global config

nginx.conf.sigil

@@ -5,11 +5,6 @@
 {{ $cors_headers_post := "if ($request_method = 'POST') { add_header 'Access-Control-Allow-Origin' '$allow_origin' always; add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always; add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always; add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range' always; add_header 'Access-Control-Allow-Credentials' 'true' always; }" }}
 {{ $cors_headers_get := "if ($request_method = 'GET') { add_header 'Access-Control-Allow-Origin' '$allow_origin' always; add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always; add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always; add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range' always; add_header 'Access-Control-Allow-Credentials' 'true' always; }" }}
 
-map $http_origin $allow_origin {
-    ~^https?:\/\/((.*\.)?localhost(:\d+)?|discoursio-webapp(-(.*))?\.vercel\.app|(.*\.)?discours\.io)$ $http_origin;
-    default "";
-}
-
 {{ range $port_map := .PROXY_PORT_MAP | split " " }}
 {{ $port_map_list := $port_map | split ":" }}
 {{ $scheme := index $port_map_list 0 }}