Fix user move template parameter
Fix user move template parameter

The template user/user_move.html tries to call an object named "user" by
"user_id=user.id", but it is called by render_template() with the
user_id, and not the user object itself as a parameter, which leads to
an error.

agdsn/pycroft,lukasjuhrich/pycroft,agdsn/pycroft,lukasjuhrich/pycroft,lukasjuhrich/pycroft,agdsn/pycroft,lukasjuhrich/pycroft,agdsn/pycroft,agdsn/pycroft