Super sidebar: Update avatar after upload

What does this MR do and why?

Super sidebar: Update avatar after upload

Currently avatar in the super sidebar doesn't update after an avatar upload. Now it does.

Changelog: fixed

Screenshots or screen recordings

Before	After
Screen_Recording_2023-11-01_at_14.00.31	Screen_Recording_2023-11-01_at_13.59.42

How to set up and validate locally

1. Upload an avatar to a user who currently has none.
2. Remove avatar if necessary.

MR acceptance checklist

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• I have evaluated the MR acceptance checklist for this MR.