The notification request does not immediately change Accept-Language after changing the system language

[ScharfViktor]

Steps:

• admin create share to einstein
• einstein logs in and see notification (english language by default)
• einstein changes language to Deutsch and awaits notification request

Expected: notification in German. request header Accept-Language => de

Actual: notification in English. The request header Accept-Language => en. After switching language all requests use Accept-Language => de except https://host.docker.internal:9200/ocs/v2.php/apps/notifications/api/v1/notifications?format=json. but after refreshing the token -> works fine, so low priority