Release v2.20.0

What's Changed

• fix(proposal creation): fix publish button by @pugakn in #1886
• fix(design): markdown shows wrong in preview (#1631) by @evgenibir in #1890
• feat(design): sliding design by @evgenibir in #1838
• feat(design): integrated new design for staging card (#1764) by @evgenibir in #1891
• feat(design): badge detail page new design (#1841) by @evgenibir in #1863
• feat(design): badge page new design (#1840) by @evgenibir in #1888
• fix(step-description): duplicated titles in proposal with edit type (#1735) by @evgenibir in #1894
• fix(proposal-list): added empty state filters in proposal page (#1893) by @evgenibir in #1898
• feat(plan-manager): added downgrade pop-up by @evgenibir in #1895
• feat(plan): add hypha to usd conversion by @pugakn in #1896
• fix(ProposalDetail): typo fix by @evgenibir in #1900

Full Changelog: v2.19.0...v2.20.0