Refactor Layout.vue to implement a redesigned, responsive shell: new branding (SVG icon, title & subtitle), computed sidebar/footer routes, route-aware page title & description, improved footer visibility, and a mobile-friendly navigation drawer. Theme handling now uses a data-theme attribute, persistent storage, accessible labels and toggle controls. Added new image assets (icon.svg, icon.png, 404NotFound.png), global.css and documentation files (style.md, codexInfo.md), updated related plugins/routes/components, and removed the old logo.png. Also updated the favicon.
Jonas
3b910850cb