* prevent creating duplicated items with different cases
* changelog
* allow terms with same name for local attributes
* fix wrong const name to identy local attributes
* use more complext terms for E2E test
* encode URL to pass E2E test
* split E2E when creating new terms
* introduce `slug` property to TokenItem
* rename terms with globalAttributeTerms
* jsdoc
* minor test name change
* changelog