Use `lowercase_with_underscores` for package namesDRT-W1037
From the Pubspec format description:
DO use lowercase_with_underscores
for package names.
Package names should be all lowercase, with underscores to separate words,
just_like_this
. Use only basic Latin letters and Arabic digits: a-z0-9_.
Also, make sure the name is a valid Dart identifier -- that it doesn't start
with digits and isn't a reserved word.