fix: move from devenv to flake.nix (wip)

showroom/source/navigation.html

showroom/source/scripts/monster.mjs

showroom/source/styles/monster.pcss

source/components/constants.mjs

source/components/datatable/change-button.mjs

source/components/datatable/datatable.mjs

source/components/datatable/datatable/header.mjs

source/components/datatable/filter.mjs

source/components/datatable/pagination.mjs

source/components/datatable/save-button.mjs

source/components/datatable/stylesheet/change-button.mjs

source/components/datatable/stylesheet/column-bar.mjs

source/components/datatable/stylesheet/dataset.mjs

source/components/datatable/stylesheet/datasource.mjs

source/components/datatable/stylesheet/datatable.mjs

...e/components/datatable/stylesheet/embedded-pagination.mjs

source/components/datatable/stylesheet/filter-button.mjs

...ponents/datatable/stylesheet/filter-controls-defaults.mjs

source/components/datatable/stylesheet/filter-date-range.mjs

source/components/datatable/stylesheet/filter-range.mjs