v2.4.0-canary.4

What's changed

• Remove scrolling behaviour and display step count in tablet/mobile for ProgressIndicator
• Add indicator display for current selection in Form.Slider and Form.RangeSlider

More details: https://github.com/LifeSG/react-design-system/wiki/Changelog
Full Changelog: v2.4.0-canary.3...v2.4.0-canary.4