V15: User side panel doesn't work for non admin users

[nikolajlauridsen]

Which Umbraco version are you using? (Please write the exact version, example: 10.1.0)

V15/dev (most likely in 15.2)

Bug summary

The user side panel does not work for non admin users, specifically the part where you can change your own password etc.

Specifics

The issue is that when the side panel is opened a request is sent to the wrong endpoint, the request is sent to /umbraco/management/api/v1/user/configuration however, this endpoint requires admin access, the appropriate endpoint is /umbraco/management/api/v1/user/current/configuration this is for the specific user and only requires backoffice access.

Steps to reproduce

1. Create a user that doesn't have admin access, for instance a editor user
2. Login to backoffice
3. Open side panel

Expected result / actual result

No response

[AndyButland]

Fixed in #18099