auth: switch to a non-default namespace

Just to test if/how this works.
It now uses "dbp-auth" instead of "translation", which was the i18next default.

packages/auth/i18next-scanner.config.js

@@ -8,6 +8,7 @@ module.exports = {
         removeUnusedKeys: true,
         func: {list: ['i18n.t', '_i18n.t']},
         lngs: ['en','de'],
+        defaultNs: 'dbp-auth',
         resource: {
             loadPath: 'src/i18n/{{lng}}/{{ns}}.json',
             savePath: 'src/i18n/{{lng}}/{{ns}}.json'

packages/auth/src/i18n.js

 import {createInstance as _createInstance, setOverrides} from '@dbp-toolkit/common/i18next.js';
 
-import de from './i18n/de/translation.json';
-import en from './i18n/en/translation.json';
+import de from './i18n/de/dbp-auth.json';
+import en from './i18n/en/dbp-auth.json';
 
 export function createInstance() {
-    return _createInstance({en: en, de: de}, 'de', 'en');
+    return _createInstance({en: en, de: de}, 'de', 'en', 'dbp-auth');
 }
 
 export {setOverrides};
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