* Footer tweaks (add border, main-content 100vh)
* Update color to be the same as the sidebar `<hr>`
* Move the border to the larger div so it also separates with the navbar
* Update border color to be the same as the background
* Fixup lint
* Fixup main content padding on mobile view
See https://github.com/overleaf/internal/pull/22186#discussion_r1876087478
* Change the border color to neutral-20
* Use `--border-divider` which is the same color as --neutral-20 (`#e7e9ee`)
* Replace `@media (width >= 768px)` by `@include media-breakpoint-up(md)`
* Replace `min-height: 100dvh` by `min-height: 100%`
GitOrigin-RevId: 426869e9b96a1ee8245c487bb80ff01856521a34
90b16e4c8e