open vscode paste following to find and replace, enable regexp and execute replace all, then execute second one
find:
"(name|label|default|category)":\s\{\n(\s*"(?!en).+":\s*".+",?)+
replace:
"$1": {
find:
("en":\s*".+"),\n(\s*"(?!en).+":\s*".+",?)+
replace:
$1\n