chore: update styles

source/components/content/viewer/message.mjs

source/components/datatable/filter.mjs

source/components/datatable/stylesheet/datatable.mjs

source/components/datatable/stylesheet/filter.mjs

source/components/form/select.mjs

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

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

source/components/form/stylesheet/field-set.mjs

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

source/components/form/stylesheet/select.mjs

source/components/style/accessibility.css

source/components/stylesheet/accessibility.mjs