* feat: add removeIcon and uploadIcon in API showUploadList
* test: test for removeIcon and downloadIcon
* docs: Upload docs and demo of downloadIcon and removeIcon
* test: update snapshot of uploadlist
* test: update Upload demo test snapshots
* fix: remove className of Upload custom action icons
* test: upldate Upload snapshot
* test: add trailing comma in upload-custom-action-icon.md
* fix: render Upload custom action icons with React.cloneElement
* test: update Uploadlist tests
* test: use string in Upload custom icon test
* fix: remove unused-var SmileOutlined in Upload demo
* fix: fix mouseEvent param missing in Upload ActionIconRender
* fix: fix mouseEvent type in Upload ActionIconRender
* fix: test mouseEvent in upload-custom-action-icon demo
* fix: fix the missing props spread in Upload custom icon
* test: add test for custom onClick in custom Upload icon
* fix: add remove test for custom Upload icon
