chore: tidy and doc

application/source/data/buildmap.mjs

application/source/data/buildtree.mjs

application/source/data/datasource/dom.mjs

application/source/data/datasource/server/restapi.mjs

application/source/data/transformer.mjs

application/source/dom/customelement.mjs

application/source/dom/dimension.mjs

application/source/dom/resourcemanager.mjs

application/source/dom/slotted.mjs

application/source/dom/updater.mjs

application/source/dom/util.mjs

application/source/i18n/formatter.mjs

application/source/i18n/locale.mjs

application/source/i18n/provider.mjs

application/source/i18n/providers/embed.mjs

application/source/i18n/translations.mjs

application/source/text/util.mjs

application/source/types/base.mjs

application/source/types/internal.mjs

application/source/util/runtime.mjs