fix: warning of no define maven compiler version

docker/copy.sh

@@ -17,7 +17,7 @@ cp ../sql/wfc_user_db/wfc_user_db.sql ./mysql/db
 echo "begin copy system html "
 mkdir -p ./nginx/html/dist/sys
 rm -rf ./nginx/html/dist/sys/*
-cp -rf ../../fe.wfc/dist ./nginx/html/dist/sys/
+cp -rf ../../fe.wfc/dist/* ./nginx/html/dist/sys/
 
 echo "begin copy user html "
 mkdir -p ./nginx/html/dist/u