2.3.0

Feat: Support user comments for workshops: #349, #350, #370
Feat: Add service workers for PWA(Progressive Web Apps) support and offline caching: #228
Feat: Implement responsive utilities: #118
Feat/fix: Implement UI requests and fix bugs: #191, #353, #354, #355, #356, #363, #379, #384, #386, #387, #389