Dockerfile: Enable registration_enabled site_setting
Dockerfile: Enable registration_enabled site_setting

Charcoal-SE/metasmoke,Charcoal-SE/metasmoke,Charcoal-SE/metasmoke,Charcoal-SE/metasmoke,j-f1/forked-metasmoke,j-f1/forked-metasmoke,j-f1/forked-metasmoke,j-f1/forked-metasmoke