* add optional to support top and left slick dots
* update carousel snapshot
* Update doc, add placement demo
* update carousel placement demo snapshots
* rename dots placement to position
* update vertical as deprecated
* rename dotsPosition to dotPosition
* refine code
* add warning testcase for vertical
* remove unused warning
* update expression
* Additional test case for dotPosition
<!--
First of all, thank you for your contribution! 😄
New feature please send pull request to feature branch, and rest to master branch.
Pull request will be merged after one of collaborators approve.
Please makes sure that these form are filled before submitting your pull request, thank you!
[[中文版模板 / Chinese template](https://github.com/ant-design/ant-design/blob/master/.github/PULL_REQUEST_TEMPLATE/pr_cn.md)]
-->
### 🤔 This is a ...
- [ ] New feature
- [ ] Bug fix
- [ ] Site / document update
- [ ] Component style update
- [ ] TypeScript definition update
- [ ] Refactoring
- [ ] Code style optimization
- [ ] Branch merge
- [x] Other (about what?)
* adjust style to be similar with origin
* update snapshot
* add missing extra logic
* adjust tiny
* fix margin
* use element to keep the place
* update snapshot
* master: (45 commits)
Add type definitions for Steps.Step (#14468)
add select check to fix edge wave issue (#14469)
Fix for Pagination ellipsis misalignment (#14473)
change sentry id
✅ Add sentry in ant.design
💄 New Sketch resources!
fix transfer ref (#14441)
Add onMouseEnter and onMouseLeave for Menu Item (#14454)
update snapshot (#14467)
📝 beautify code style in documentation (#14457)
Updating type: TreeSelectProps.getPopupContainer (#14443)
change error version
3.12.4 changelog (#14436)
Format
Fix the bug that radio onchange will be ovrride by radioGroup onchange (#14364)
docs: updated doc for create-react-app
fix prefixCls of empty go to div (#14404)
update snapshot (#14406)
add radius on table-placeholder to fix table small size border clip (#14398)
fix style of Input.Search with enterButton (#14397)
...
* init
* number format
* add Countdown
* ⚡ Try something ts stuff
* move out Countdown
* add format
* support countdown
* add prefix & suffix
* Move Number to Statistic
* adjust ts
* clean up
* roll back of lodash
* update doc & style
* variable of the less style
* add demo test
* full coverage
* hide title if not need
* update snapshot
* update accessiblity
* update color
* stop countdown when time is out
* formatTimeStr adjust
* use reset class
* add miss tab index
* update doc
* update title prop & snapshot
* rm additional aria. It's over design
* use card sample on unit demo
* sfc
* adjust demo
