chore: update doc, small issues, etc #274

development/issues/closed/272.html

development/issues/closed/272.mjs

development/issues/open/274.html

development/issues/open/274.mjs

development/mock/issue-274.js

source/components/content/copy.mjs

source/components/datatable/dataset.mjs

source/components/datatable/datasource/rest.mjs

source/components/datatable/pagination.mjs

source/components/form/api-bar.mjs

source/components/form/api-button.mjs

source/components/form/button-bar.mjs

source/components/form/button.mjs

source/components/form/confirm-button.mjs

source/components/form/form.mjs

source/components/form/select.mjs

source/components/layout/tabs.mjs

source/components/layout/width-toggle.mjs

source/components/navigation/table-of-content.mjs

source/components/notify/message.mjs