v0.4.0

What's Changed

• Add undo and redo buttons and keyboard shortcuts by @giswqs in #15
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #14
• Add attribute editing panel by @giswqs in #16

New Contributors

• @pre-commit-ci[bot] made their first contribution in #14

Full Changelog: v0.3.3...v0.4.0