Merge pull request #144 from JerichoDing/master

fix: 兼容监听火狐浏览器的滚轮事件

Merge pull request #115 from xiaoxuefengnian/feat/grid

feat(grid): add grid type

Merge pull request #111 from heylight/daily/2.21.0

feat: 升级依赖版本

1. 多边形闭合优化

2. 新增ctrl拖动形状
3. 优化ts类型提示

Merge pull request #100 from heylight/fix/2.19.1

fix: 修复只读问题

Merge pull request #95 from heylight/daily/2.19.0

feat: 避免键盘事件被阻止

Merge pull request #85 from heylight/heylight-patch-1

更新版本

Merge pull request #80 from heylight/feat/2.17.0

feat: 新增readonly模式

Merge pull request #78 from heylight/feat/2.16.0

feat: 优化画布更新

update: 修改版号