Updating user password in dashboard says "not authorized", but updates password anyway.

### Describe the bug When you try to update your password in the rabbit mq dashboard, it will say "not authorised", and you have to refresh the page and sign back in with the new password. It should give an appropriate confirmation, and/or instructions on what to do next (refresh the page) ### Reproduction steps 1. Sign in to dashboard 2. Go to admin panel, and try to update your own password 3. See "not authorised" popup message 4. Refresh page and sign in with new password to see that it has been updated, even though this was not confirmed ... ### Expected behavior When the user successfully updates their password, it should give an appropriate confirmation message, and perhaps include a button that links back to the sign in page, rather than the user having to refresh the page themselves ### Additional context _No response_