refactor(NavBar): change margin to padding to increse touchable area. ref #844
refactor(NavBar): change margin to padding to increse touchable area. ref #844

ddcat1115/ant-design-mobile,bccsafe/ant-design-mobile,ant-design/ant-design-mobile,ant-design/ant-design-mobile,bccsafe/ant-design-mobile,ddcat1115/ant-design-mobile,bccsafe/ant-design-mobile,ddcat1115/ant-design-mobile,ant-design/ant-design-mobile,ddcat1115/ant-design-mobile,ddcat1115/ant-design-mobile,bccsafe/ant-design-mobile,ant-design/ant-design-mobile,bccsafe/ant-design-mobile