WEB UI > Review navigation to remove main tabs

The Admin view could be related to the user menu, depending of its rights
The Search view is now accessible through the search input
The Home view is now accessible through the logo (NXP-19003)
The Browse view could be accessible with the tree side panel, and avoid user to click on Workspaces, then a workspace, etc. User can browse directly the folder needed with tree, short links, favorites, activity, latest elements edited / created, or even by search.