card disappears when pressing on the "x-mark" icon

Hi All,
Please I need help as I’m very new to phoenix framework and elixir…
I’ve implemented a card and i want when a user clicks on the “x-mark” icon the card exits.
This is my code
Mount Function:

@impl true
def mount(params, _session, socket) do
user_id = socket.assigns.current_user.id
{
:ok,
socket
|> assign( :setup_card, true)
}
end

Handle function:

def handle_event(“hide_card”, _ , socket) do
{:noreply, assign(socket, :setup_card, false)}
end

Update funtion:

@impl true
def update(assigns, socket) do
IO.inspect(assigns)
{:ok,
socket
|> assign(assigns)}
end

HTML code icon:

Live_component of the whole card:

<.home_setup_account current_user={@current_user} setup_card={@setup_card} :if={@setup_card} />