Release of NSW Design System v3.5.0

What's Changed

• Updated What's happening page v3.4.0 and fixed a broken link by @laurenhitchon in #277
• Updated branding/nsw-government-visual-identity-system link by @laurenhitchon in #279
• Feature/select by @laurenhitchon in #278

Full Changelog: v3.4.0...v3.5.0