feat: v2.5.6

CHANGELOG.md

dist/example/example.css

dist/example/index.html

dist/style/weui.css

dist/style/weui.min.css

package.json

src/example/example.less

src/example/form/form_checkbox.html

src/example/form/form_switch.html

src/example/home.html

src/example/steps/steps_horizonal.html

src/example/steps/steps_vertical.html

src/style/widget/weui-button/weui-btn_bottom-fixed.less

src/style/widget/weui-cell/weui-access.less

src/style/widget/weui-cell/weui-cell_global.less

src/style/widget/weui-cell/weui-cells__group.less

src/style/widget/weui-cell/weui-check/weui-check_common.less

src/style/widget/weui-cell/weui-switch.less

src/style/widget/weui-panel/weui-panel.less

src/style/widget/weui-steps/weui-steps.less