Public dependency support

[epage]

Public dependencies aren't stable yet, so we don't have to block on having them done but we should track notes on ideas we have during development

• When selecting a dependency version from Cargo.lock, search public dependencies of workspace members and not just direct dependencies (from fix: Don't overwhelm the user with features  #135)
• By default, show public dependencies of the selected package (from feat: Put dependencies behind --verbose #129)