fix(slink): allow CORS from any origin for LAN access

Default CORS_ALLOW_ORIGIN only permits localhost, blocking login
when accessed via LAN IP.

install/slink-install.sh

@@ -46,6 +46,7 @@ sed -i "s|^APP_ENV=.*|APP_ENV=prod|" .env
 sed -i "s|^ADMIN_EMAIL=.*|ADMIN_EMAIL=admin@localhost|" .env
 sed -i "s|^ADMIN_PASSWORD=.*|ADMIN_PASSWORD=${ADMIN_PASS}|" .env
 sed -i "s|^JWT_PASSPHRASE=.*|JWT_PASSPHRASE=${JWT_PASS}|" .env
+sed -i "s|^CORS_ALLOW_ORIGIN=.*|CORS_ALLOW_ORIGIN='^https?://.*$'|" .env
 sed -i "s|sqlite:////app/var/data|sqlite:////opt/slink/services/api/var/data|g" .env
 export APP_ENV=prod
 mkdir -p /opt/slink/services/api/var/data