[package_info_plus] fix app name on iOS and macOS

[alexbatalov]

Description

This PR adds fallback to CFBundleName if CFBundleDisplayName does not exist. This approach is suggested by Apple in QA1544.

Related Issues

#432

Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• My PR includes unit or integration tests for all changed/updated/fixed behaviors (See Contributor Guide).
• All existing and new tests are passing.
• I updated/added relevant documentation (doc comments with ///).
• The analyzer (flutter analyze) does not report any problems on my PR.
• I read and followed the Flutter Style Guide.
• I am willing to follow-up on review comments in a timely manner.

Breaking Change

Does your PR require plugin users to manually update their apps to accommodate your change?

• Yes, this is a breaking change (please indicate a breaking change in CHANGELOG.md and increment major revision).
• No, this is not a breaking change.

[mhadaily]

can you merge with main and push one more time. thanks

[alexbatalov]

git says it's already up to date with main

[mhadaily]

Perfect, can you please pump minor version and add this to changelog ? thanks

[mhadaily]

LGTM

[mhadaily]

LGTM