Update Dockerfile

Dockerfile

@@ -41,8 +41,7 @@ RUN --mount=type=secret,id=MONGODB_URL,mode=0444 \
     && APP_COLOR="${APP_COLOR:="$(cat /defaults/APP_COLOR)"}" && export APP_COLOR \
     && APP_NAME="${APP_NAME:="$(cat /defaults/APP_NAME)"}" && export APP_NAME \
     && MONGODB_URL=$(cat /run/secrets/MONGODB_URL > /dev/null | grep '^' || cat /defaults/MONGODB_URL) && export MONGODB_URL && \
-    echo "${MONGODB_URL}" \
-    && API_URL=$(cat /defaults/.api_url) && export API_URL && echo "${API_URL}" \
+    echo "${MONGODB_URL}" && \
     envsubst < ".env.local.template" > ".env.local" \ 
     && rm .env.local.template