This PR addresses issue #9042 - Replaced the styled logo with the `Avatar` component. - `Avatar` now handles the case when no `logo` is uploaded by using the workspace name's first character as the `placeholder`. - This ensures a consistent fallback when the `logo` is undefined. --------- Co-authored-by: guillim <guigloo@msn.com> Co-authored-by: Félix Malfait <felix@twenty.com> Co-authored-by: Charles Bochet <charles@twenty.com>