[BUG] 🐛 When searching user from the realm homepage the userstorage is lost while still displayed

When a user select a realm and then select a userstorage, it stays on the realm homepage where it can search organizations or users on the entire realm. Thus when it launch a research the users retrieved are on all the realm and the application considers itself as on realm and not userstorage while the ui still prints the selected userstorage.

First we need a way to maintain a strong coherence between the application state, the uri and what is displayed.

Next we have to choose between removing the userstorage on the left when searching on all the realm from the realm mainpage or reducing the search on the realm homepage to a search on the userstorage only. I personally prefer the second option