Refactor code structure for improved readability and maintainability

chore: remove file extensions from import statements for consistency

refactor: update identity tests to use consistent formatting and impr…

…ove clarity

refactor: correct test description in first and last utility tests for accuracy
refactor: simplify replace utility tests by removing redundant cases
refactor: adjust toArray tests for clarity and remove unnecessary assertions

chore: update package versions to 2.0.3 and improve type safety; upda…

…te dependencies

chore: add git-checks option to .npmrc configuration

chore: bump package versions to 2.0.0 and update changelogs for bee, …

…fuzzy, relax, and wasp

Merge pull request #167 from aiszlab/166-release-patch-release

chore: update package versions to 1.5.12 and remove obsolete changesets

chore: bump version to 1.5.11 and update changelogs for all packages

chore: bump version to 1.5.10 and update changelogs for all packages

chore: bump version to 1.5.9 and update changelogs for all packages