Vulk - Kit de Base Multi-Pouvoirs Vue 3 SSR SaaS Pages de Landing UI Kit 2.1.2

- Bug Fixes

- enhance BackToTop visibility logic in default layout
- hero text overlaping with screenshots
- hide default details marker in Collapse component on safari
- hide default details marker in Collapse component on safari
- improve SSR error rendering during dev
- remove unnecessary whitespace and standardize image height in NavbarA component
- standardize image height in navbar components for firefox
- use montserrat variable font

Bug Fixes
- add seo meta examples
- node engine, charset and seo image size
- optional image and url config + expose VITE_APP_URL env variable
- update vite 5 beta + update packages + build issue