fix: some layout issues and add labels to small datatable #260

development/issues/open/260.html

development/issues/open/260.mjs

source/components/datatable/datatable.mjs

source/components/datatable/datatable/header.mjs

source/components/datatable/style/datatable.pcss

source/components/datatable/stylesheet/datatable.mjs

source/components/form/button-bar.mjs

source/components/form/button.mjs

source/components/form/style/button-bar.pcss

source/components/form/style/button.pcss

source/components/form/style/confirm-button.pcss

source/components/form/style/message-state-button.pcss

source/components/form/style/popper-button.pcss

source/components/form/style/state-button.pcss

source/components/form/stylesheet/button-bar.mjs

source/components/form/stylesheet/button.mjs

source/components/form/stylesheet/confirm-button.mjs

source/components/form/stylesheet/message-state-button.mjs

source/components/form/stylesheet/popper-button.mjs

source/components/form/stylesheet/state-button.mjs