feat: README.md

feat: update project description

fix: mispelling

fix: update project description

fix: update dependencies

fix(`README.md`): update

fix(`Builder::REDUCTOR_LINTS`): add `clippy::unnecessary_literal_unwrap`

fix(grammar): update syntax

fix(`Builder`): improve alias generation

feat: support cloning items with `&` prefix

feat: allow custom entry types

fix: apply clippy pedantic mode lints

refact(`builder::ItemAlias`): use a source reference instead of `String` for naming

fix: update `out`

feat(grammar): use the new features