Revert "modular scale tweaks"

This reverts commit 13dd456fd40034d3bd75557894188ecbc1f2e812.
Revert "update lagacy nav"

This reverts commit 7e89f225b512a5e109e508c816fa8a5cbf8d044e.
Revert "tweaking layout and nav"

This reverts commit 193a2f93d887f6045da5c82d0646abbf6db65f65.
Revert "better error handling"

This reverts commit 5913cb7a486c1002e0f324962377beffaf6a9fad.
Revert "getting prev/next buttons ready"

This reverts commit d9f71f123eb91678ed9ccf22c25e3279d3149712.
restructure layouts