If you want to modify the add new user role button just update the
Add new role like,
frmelmnts->btn-> "addnuserrole"="new Add new role"
To add new resource bundle in portal:
src->app->resourcebundles->json This folder contains .json files that hold the resource bundle arrays. To add a new resource bundle, create a file named {language_code}.json.
Copy and paste the content of en.json into your new file and modify the value. It will display the default(english) value if any of the values are missing.