language update (#11374)

lang/ko.json

lang/nl.json

lang/sv.json

plugins/API/lang/nl.json

plugins/Actions/lang/de.json

plugins/Actions/lang/nl.json

plugins/Annotations/lang/nl.json

plugins/CoreAdminHome/lang/de.json

plugins/CoreAdminHome/lang/nl.json

plugins/CoreHome/lang/cs.json

plugins/CoreHome/lang/de.json

plugins/CoreHome/lang/el.json

plugins/CoreHome/lang/fr.json

plugins/CoreHome/lang/it.json

plugins/CoreHome/lang/ja.json

plugins/CoreHome/lang/ko.json

plugins/CoreHome/lang/nl.json

plugins/CoreHome/lang/ru.json

plugins/CoreHome/lang/sq.json

plugins/CoreHome/lang/sv.json