Fix crash when visiting user

We're adding the "join" action so that rooms are joined.
libQuotient doesn't like it when we the action is join and the uri is for a user.

BUG: 483744

src/roommanager.cpp

@@ -91,7 +91,7 @@ void RoomManager::resolveResource(const QString &idOrUri, const QString &action)
         if (!m_connection) {
             return;
         }
-        if (!action.isEmpty()) {
+        if (!action.isEmpty() && (uri.type() != Uri::UserId || action != "join"_ls)) {
             uri.setAction(action);
         }
         // TODO we should allow the user to select a connection.