component/web: Add 'HTTPSMETHOD'

This commit sets the 'HTTPSMETHOD' variable on the 'web' component for
when https is or is not enabled.

embed/resources/compose/web/docker-compose.yml

@@ -5,6 +5,7 @@ services:
     image: ghcr.io/nginx-proxy/nginx-proxy:alpine
     environment:
       - DEFAULT_HOST=${DEFAULT_HOST}
+      - HTTPS_METHOD=${HTTPS_METHOD}
     ports:
       - "80:80"
       - "443:443"